A crossbody bag solves a problem that only becomes obvious on the third day of a trip: you need your phone, passport, charger and water within reach, and you do not want to take a backpack off every time. Worn across the chest, a sling keeps all of it in front of you, which is also the position pickpockets find least convenient. Our shortlist covers 9 mens crossbody bag for travel picks from BULLCAPTAIN, NICGID, G4Free and more, sorted by how much they carry and how hard they are to open without you noticing.

Our top pick is the WATERFLY Crossbody Sling for carrying a genuine day’s kit without becoming a backpack, backed by more customer feedback than anything else in the category. Before the list, one honest note: several bags here advertise RFID blocking, and the section below explains why that matters less than the marketing implies. If you are still choosing the case that goes in the hold, see our guide to carry-on luggage. This list is current for August 2026.

1
Best Seller

WATERFLY Crossbody Sling Backpack for Travel, Hiking and Daypack Use (Best Overall)

WATERFLY
9.7 /10
DDH Score
DDH Score is a scoring system developed by our editors. The score is from 0 to 10 based on real product ratings and reviews we track. This score doesn't impact from any manufacturer or sales agent websites. Learn more ›
Pros & Cons

Pros

  • Carries a tablet, a jacket and a bottle without becoming a backpack
  • By far the largest rating history in this category
  • Suits both travel and hiking use
  • Wide strap handles a loaded bag

Cons

  • Large enough to encourage overpacking
  • Single shoulder load tires on very long days
Detailed Review

This is the sling that carries a genuine day rather than a pocketful. A tablet, a folded layer, a bottle of water and the usual documents all fit, which is exactly the load a full day of sightseeing produces, and it does that without turning into a backpack you have to remove to reach anything.

The volume of customer feedback behind it is the strongest signal available in a category otherwise full of near-identical bags from unfamiliar brands. Whatever its flaws, an enormous number of people have used one and reported back.

Two honest limitations. A bag this size invites you to fill it, and everything you add hangs on one shoulder, so plan on swapping sides during a long day. And like almost everything here, water resistant means drizzle rather than sustained rain.

Bottom line: the best all-round travel sling, and the one to buy if you want a single bag for whole days out.

Specifications
  • Type: crossbody sling backpack
  • Dimensions: 15 x 7 x 3.5 inches, 38 x 18 x 9 cm
  • Phone compartment: screens up to 7 inches
  • Water bottle holder: external
  • Umbrella pocket: mesh
  • Back panel: breathable padded
  • Extras: reflective stripe, earphone port
Who It's For

Travellers out from breakfast to dinner who want water, a layer and a tablet within reach.

Less suited to anyone who wants a bag small enough to forget they are wearing.

How to Use

Wear it across the front in crowds and on transit, and on the back in open space.

Swap shoulders every couple of hours on a long day; single-strap loads cause neck ache faster than a backpack.

2
Editor's Pick

NICGID Sling Bag Chest Shoulder Backpack, Laptop Capable Crossbody Daypack (Best Value)

NICGID
9.7 /10
DDH Score
DDH Score is a scoring system developed by our editors. The score is from 0 to 10 based on real product ratings and reviews we track. This score doesn't impact from any manufacturer or sales agent websites. Learn more ›
Pros & Cons

Pros

  • Laptop capability at sling prices
  • Large main compartment
  • Wears as chest bag or over the shoulder
  • Strong rating history

Cons

  • Bulky once a laptop is inside
  • Not a bag you forget you are wearing
Detailed Review

If your travel day includes work, this is the useful compromise. It swallows a small laptop or a tablet along with the usual documents and charger, at a price well below bags that advertise the same capability.

Worn across the front it keeps a laptop against your body, which is both more secure and easier on the shoulder than the same weight hanging behind you. On an aircraft it fits the personal item slot on most carriers, so the laptop stays at your feet.

The honest cost is bulk. A sling carrying a laptop is a substantial object on your chest, and it is not the bag for a light evening out. Many travellers end up owning this and something much smaller.

Bottom line: the value pick, and the right choice if the sling has to earn its keep on work days too.

Specifications
  • Type: sling chest and shoulder backpack
  • Capacity: laptop or tablet capable
  • Size class: day bag
  • Wear: crossbody or shoulder
  • Fit: unisex
Buyer Guide

Measure your laptop against the stated compartment size before ordering; sling laptop pockets are tighter than backpack equivalents.

Check dimensions against your airline's personal item limits if you fly budget carriers.

Care & Safety

Keep the laptop compartment against your body rather than facing outward, which protects it in a crowd and balances the load.

Use a sleeve inside; sling padding is thinner than backpack padding.

3
Limited Time

G4Free Sling Bag with RFID Blocking Pocket for Daily Use and Travel

G4Free
9.7 /10
DDH Score
DDH Score is a scoring system developed by our editors. The score is from 0 to 10 based on real product ratings and reviews we track. This score doesn't impact from any manufacturer or sales agent websites. Learn more ›
Pros & Cons

Pros

  • Right size for a day's essentials
  • RFID blocking pocket included
  • Suits daily and travel use equally
  • Established rating history

Cons

  • RFID blocking matters less than the marketing implies
  • Mid-size means no laptop
Detailed Review

This sits in the size class most travellers actually want: large phone, passport, charger, sunglasses and a small bottle, and no room to accumulate things you do not need.

The RFID pocket is the headline feature and deserves an honest assessment. It works as described, blocking a reader from communicating with a contactless card, but the threat it addresses is far smaller than the marketing suggests, since modern cards use one-time cryptograms and recent passports carry their own shielding. Treat it as a free extra.

What actually matters here is that the bag is the right size and the pockets are where you expect them. That, plus a long enough strap to wear across the front comfortably, is what makes a travel sling work.

Bottom line: a well-sized everyday travel sling; buy it for the dimensions, not for the RFID lining.

Specifications
  • Type: crossbody sling bag
  • Size class: everyday carry
  • RFID: blocking pocket
  • Uses: daily, travel
  • Strap: adjustable
Who It's For

Travellers who want documents, a charger and a bottle to hand and nothing more.

Not for anyone needing to carry a laptop or a jacket.

Buyer Guide

Compare this directly against the SKYSPER and SEAFEW; all three occupy the same size class at similar prices.

Decide on pocket layout and strap comfort rather than on the RFID claim they all share.

4
Top Rated

SKYSPER RFID Crossbody Sling Backpack for Travel and Everyday Carry

SKYSPER
9.8 /10
DDH Score
DDH Score is a scoring system developed by our editors. The score is from 0 to 10 based on real product ratings and reviews we track. This score doesn't impact from any manufacturer or sales agent websites. Learn more ›
Pros & Cons

Pros

  • Highest rating average here
  • RFID crossbody design
  • Suits travel and daily use
  • Balanced pocket layout

Cons

  • Smaller rating sample than the leaders
  • RFID is not the deciding feature it appears
Detailed Review

The SKYSPER carries the best rating average on this list, and in a category where dozens of visually identical bags compete, that is the most useful signal available short of handling them.

It occupies the everyday carry size class: documents, a large phone, a charger, a small bottle. That is the size that suits most trips, because it holds what a day needs without inviting the extra weight a day bag attracts.

Its RFID pocket carries the same caveat as every other bag here, which is that the feature works but addresses a threat smaller than the marketing implies. Judge it instead on strap comfort and on whether the pockets sit where your hands expect them.

Bottom line: the highest rated sling here, and a sensible default in the mid size class.

Specifications
  • Type: RFID crossbody sling backpack
  • Size class: everyday carry
  • Wear: cross body, chest or shoulder
  • Uses: travel and daily
  • Strap: adjustable
Buyer Guide

Note that its rating sample is smaller than the WATERFLY's, so the average rests on less evidence.

Compare pocket layout against the G4Free before deciding; the two are close rivals.

How to Use

Keep the passport in the pocket that sits against your back, and the phone in the quick-access pocket on top.

Wear across the front on transit and in markets.

5

SEAFEW Anti-Theft Crossbody Sling with Concealed Zips for Crowded Cities

SEAFEW
9.6 /10
DDH Score
DDH Score is a scoring system developed by our editors. The score is from 0 to 10 based on real product ratings and reviews we track. This score doesn't impact from any manufacturer or sales agent websites. Learn more ›
Pros & Cons

Pros

  • Concealed zip design is genuine substance behind the anti-theft claim
  • Lightweight for its size
  • Back pocket sits against the body
  • Suits crowded cities

Cons

  • Concealed zips are slower for you as well as for a thief
  • Mid-size capacity only
Detailed Review

Anti-theft is the most abused phrase in this category, and most bags claiming it offer nothing more than an RFID lining. This one is built around zip placement, which is the feature that actually matters: zips that sit against your body or under a flap cannot be opened behind you without you feeling it.

Combined with a back pocket that lies flat against your spine, which is where a passport belongs in a crowd, this is a sensible design rather than a marketing exercise.

The cost is a small amount of daily friction. Concealed zips are slower for the owner too, so keep the phone in an accessible pocket and reserve the hidden compartment for things you take out twice a day rather than twenty times.

Bottom line: the pick for crowded cities, and the bag here whose security claim has substance behind it.

Specifications
  • Type: anti-theft crossbody sling
  • Zips: concealed placement
  • Size class: everyday carry
  • Weight: lightweight
  • Uses: travel, daily, crowded transit
Who It's For

Travellers spending time in busy metros, markets and festivals.

Less relevant on rural or resort trips where the risk is low and the friction is not worth it.

Care & Safety

Keep documents in the body-side pocket and daily items in the outer pocket, so the concealed compartment stays shut in public.

Wear across the front in any crowd; no zip design compensates for a bag behind you.

6

Inateck Sling Bag X, Multi-Pocket Crossbody Chest Bag with Adjustable Strap

Inateck
9.7 /10
DDH Score
DDH Score is a scoring system developed by our editors. The score is from 0 to 10 based on real product ratings and reviews we track. This score doesn't impact from any manufacturer or sales agent websites. Learn more ›
Pros & Cons

Pros

  • Strong pocket organisation
  • Adjustable strap for chest or shoulder
  • Tidy, understated appearance
  • Good rating average

Cons

  • Multiple pockets can hide small items
  • Mid-size capacity only
Detailed Review

Some travellers want one large space; others want a place for everything. The Sling Bag X is firmly for the second group, with enough separate compartments that a passport, a charger, cables, a phone and sunglasses each get their own home.

That organisation pays off at a ticket barrier or a security queue, where knowing exactly which pocket holds what saves rummaging. The understated appearance is also worth something in a city where a very technical-looking bag stands out.

The mild downside of many pockets is that small items disappear into the one you did not check. Settle on a system in the first day and keep to it.

Bottom line: the organiser's sling, for people who dislike one big compartment.

Specifications
  • Model: Sling Bag X
  • Type: multi-pocket crossbody chest bag
  • Strap: adjustable
  • Size class: everyday carry
  • Uses: travel and daily
Buyer Guide

Choose this if you already know you prefer compartments over one open space.

Choose the WATERFLY instead if you want to drop a jacket in the main compartment.

How to Use

Assign each pocket a purpose on day one and keep to it; multi-pocket bags only save time once the system is fixed.

Keep the quick-access pocket for phone and transit card only.

7

BULLCAPTAIN XB-129 Genuine Leather Sling Bag for Men

BULLCAPTAIN
9.8 /10
DDH Score
DDH Score is a scoring system developed by our editors. The score is from 0 to 10 based on real product ratings and reviews we track. This score doesn't impact from any manufacturer or sales agent websites. Learn more ›
Pros & Cons

Pros

  • Genuine leather rather than coated polyester
  • Removable buckle allows left or right shoulder wear
  • Ages well and looks smart in a restaurant
  • Takes an iPad Mini sized tablet

Cons

  • Heavier than fabric equivalents
  • USB port is a pass-through cable, not a battery
Detailed Review

Every other bag on this list is coated fabric, which is light, cheap to waterproof and looks like outdoor equipment. The BULLCAPTAIN is the alternative for trips where you will be in restaurants and bars as often as on trains.

Leather ages rather than wears out, develops a patina, and reads as a considered accessory rather than as a piece of travel kit. In a city where looking like a tourist has practical consequences, that is not a purely aesthetic argument.

A removable buckle lets it be worn on either shoulder, which is rarer than it should be and matters on a long day. The USB port is less impressive: it is a pass-through lead rather than a battery, so it does nothing without a power bank already inside.

The trade-offs are physical. It weighs more than fabric for the same capacity, it dislikes being soaked, and it costs more. If the sling spends its life crammed into a rucksack between hostels, buy fabric instead.

Bottom line: the smart option, for trips where the bag is seen as well as used.

Specifications
  • Model: XB-129
  • Material: genuine leather
  • Dimensions: 6.3 x 11.8 x 2.8 inches
  • Tablet: iPad Mini sized
  • Buckle: removable, left or right wear
  • USB: pass-through port with cable inside
Care & Safety

Let leather dry naturally away from direct heat if it gets wet; a radiator will crack it.

Condition it once or twice a year, more often in dry climates.

Who It's For

City trips, business travel, and anyone who wants one bag that works at dinner as well as during the day.

Not for wet climates or for bags that live inside larger luggage.

8

EVANCARY Small Lightweight Crossbody Sling Bag for Men and Women

EVANCARY
9.6 /10
DDH Score
DDH Score is a scoring system developed by our editors. The score is from 0 to 10 based on real product ratings and reviews we track. This score doesn't impact from any manufacturer or sales agent websites. Learn more ›
Pros & Cons

Pros

  • Light enough to forget you are wearing
  • Pocket replacement sizing
  • Unisex design
  • Low cost

Cons

  • Too small for a jacket or bottle
  • Thin strap under load
Detailed Review

Not every trip needs a bag that carries a day. On a warm evening, or on a beach holiday, the goal is simply to have your phone, cards, keys and sunglasses secure without wearing a jacket with pockets.

That is exactly what this is: small, light, and unobtrusive enough that you stop noticing it. Worn across the front it keeps valuables in view, which on a crowded promenade is the whole point.

Do not expect more. A water bottle will not fit, a jacket certainly will not, and the strap is sized for a light load rather than a heavy one. Within those limits it is a sensible, cheap purchase.

Bottom line: the pocket replacement, and the right amount of bag for warm weather travel.

Specifications
  • Type: small crossbody sling
  • Size class: pocket replacement
  • Fit: unisex
  • Capacity: phone, cards, keys, sunglasses
  • Weight: lightweight
Who It's For

Warm weather trips, evenings out, and anyone who wants to leave jacket pockets behind.

Not for day-long sightseeing where water and a layer are needed.

Buyer Guide

Compare against the higouta mini; both occupy the same size class.

If you find yourself wanting a bottle pocket, buy one size up instead.

9

higouta Mini Sling Bag, Small Crossbody Utility Chest Pack

higouta
9.6 /10
DDH Score
DDH Score is a scoring system developed by our editors. The score is from 0 to 10 based on real product ratings and reviews we track. This score doesn't impact from any manufacturer or sales agent websites. Learn more ›
Pros & Cons

Pros

  • Smallest and least obtrusive here
  • Utility styling suits casual wear
  • Very light
  • Inexpensive

Cons

  • Genuinely minimal capacity
  • No room for documents beyond a passport
Detailed Review

This is the minimum viable bag. It holds a phone, cards, keys and perhaps a passport, and it exists so that you can go out with your hands and pockets empty.

The utility styling suits casual wear better than a technical travel sling does, and at this size the bag disappears under a jacket or over a shirt without changing your silhouette.

Judge it strictly by its class. Anyone hoping to add a water bottle or a compact camera will be disappointed, and that is not a defect but the entire design brief.

Bottom line: the smallest option here, for travellers who want almost nothing on them.

Specifications
  • Type: mini sling crossbody bag
  • Size class: pocket replacement, smallest here
  • Fit: men and women
  • Capacity: phone, cards, keys
  • Style: casual utility
Who It's For

Evenings out, festivals, and travellers who carry as little as possible.

Not for day trips requiring water, documents and a layer.

How to Use

Wear it high on the chest rather than low on the hip; a small bag swinging at hip level is easier to reach than one sitting under your sternum.

Keep the passport in the innermost compartment.

How to Choose Mens Crossbody Bag For Travel

Sling bags span a wider size range than the category name suggests, from something that holds a phone and a passport to a bag that swallows a tablet, a jacket and a litre of water. Start by deciding which end of that range you need, because a bag that is too large gets worn on the back and stops being a sling at all.

Size: Day Bag, Everyday Carry, or Pocket Replacement

The open main compartment of a day-bag sling showing a tablet and a passport inside
Photo: Amazon

Three sizes dominate. The largest, which covers the WATERFLY and the laptop-capable NICGID, take a tablet or small laptop, a folded jacket and a water bottle. These are day bags for sightseeing, and they are genuinely useful in a city where you are out from breakfast until dinner.

The middle group, including the G4Free, SKYSPER, SEAFEW and Inateck, holds a large phone, a passport, a charger, sunglasses and a small water bottle. This is the size most travellers actually want, because it carries the day’s essentials without encouraging you to fill it.

The smallest, such as the higouta mini and the EVANCARY, are pocket replacements. They exist so you can leave a jacket behind and still carry a phone, cards and keys securely. On a beach holiday or a warm evening out, that is exactly the right amount of bag.

What RFID Blocking Is Actually Worth

Several bags here advertise RFID blocking pockets, and it deserves a straight answer rather than a marketing line. RFID blocking uses a metallic layer to stop a reader communicating with a contactless card in your bag. It does work as described.

The question is whether the threat is real. Modern contactless cards use one-time cryptograms rather than transmitting a reusable number, chip and PIN or a phone confirmation is required above small amounts, and documented cases of wireless card skimming in the wild are rare compared with the volume of coverage the idea receives. Passports issued in the last decade carry their own shielding in the cover.

Treat it as a free extra rather than a deciding feature. If two bags are otherwise equal and one has an RFID pocket, take it. Do not pay a premium for it, and do not choose a worse bag because it has one. Zips you can reach and a strap you can wear across the front will do far more for your security.

Anti-Theft Features That Actually Help

The single most effective anti-theft feature is free: wear the bag on your front in crowds. A sling worn across the back is a backpack with one strap, and it is just as easy to open behind you. Swinging it round when you enter a metro or a market takes a second.

Beyond that, look for a concealed back pocket sitting against your body, which is where a passport belongs, and zip pulls that face inward or can be clipped together. The SEAFEW markets itself specifically on anti-theft design, and hidden zips are the substance behind that claim. Slash-proof strap cores and locking zips exist further up the market and are overkill for most trips.

Material, Weather, and Weight

A grey water resistant fabric crossbody sling bag viewed from the front with its zipped pockets closed
Photo: Amazon

Almost everything here is polyester or nylon, which is light, cheap to make water resistant and easy to clean. Water resistant is not waterproof: a coated fabric handles drizzle and a brief shower, and in sustained rain water finds the zips. If your trip involves real weather, carry a light dry bag inside for electronics rather than trusting a coating.

The BULLCAPTAIN is the outlier in genuine leather, and the trade is straightforward. It looks considerably better in a restaurant and ages well, it weighs more, it takes badly to being soaked, and it costs more. If the bag is as much an accessory as a tool, that may be the right trade. If it is going into a rucksack between cities, it is not.

Straps, Comfort, and Which Shoulder

A brown leather sling bag with its removable buckle and adjustable strap, shown set up for left or right shoulder wear
Photo: Amazon

Sling bags load one shoulder, so strap width and padding matter more than they would on a backpack. A narrow webbing strap is fine on a bag holding a phone and wallet, and becomes uncomfortable within an hour once a water bottle and a tablet are in it.

Check whether the strap can be swapped between shoulders. Many slings are built for one side only, with the buckle and pockets oriented accordingly, and left-handed travellers or anyone who wants to alternate shoulders on a long day should confirm before buying. The BULLCAPTAIN is the clearest example here of getting this right, with a removable buckle that lets the same bag be worn on either the left or the right. Alternating shoulders is also the simplest way to avoid the neck ache that ends most people’s relationship with sling bags.

Flying With a Sling Bag

On most airlines a sling counts as your personal item rather than your cabin bag, which means it goes under the seat in front and does not use up your allowance. That makes it a genuinely useful travel purchase rather than an extra thing to carry: laptop, documents, medication and anything you would hate to lose stay with you at your feet.

Two cautions. Budget carriers increasingly size personal items strictly, so check the dimensions against your airline before assuming the largest bag here qualifies. And keep liquids in the sling only if they are within the security limit, since a sling is exactly the bag you will be asked to open at the scanner.

Organisation, and the Pocket That Matters Most

Interior organisation sounds like a minor feature until you are standing at a ticket barrier with a queue behind you. The pocket that matters most is a small quick-access one on the outside or the top for the phone and a transit card, so the main compartment stays shut in public.

A dedicated water bottle pocket is the second thing to look for, because a bottle loose in the main compartment lies on everything else and leaks onto it. Several bags here include an external bottle sleeve; on those that do not, a bottle is a genuine nuisance.

Ignore the USB charging port that several sling bags advertise, including the one on the BULLCAPTAIN. It is a pass-through cable, and the manufacturer says as much: a short USB lead is supplied inside the bag. There is no battery, so it only does anything when you already have a power bank in the main compartment, at which point you could run the cable out through a zip gap instead. It adds a hole in the fabric and one more component to fail.

Buying for Someone Else, and the Sizing Problem

Slings are a common gift and a common return, and the reason is almost always strap length rather than the bag itself. Listings quote a maximum strap length, and on many budget slings that maximum is generous for an average frame and marginal for a tall or broad one. Anyone above roughly six feet, or wearing a winter coat under the strap, should check the stated maximum rather than assuming.

The second sizing trap is the opposite one. Straps that only shorten so far leave a small bag hanging at hip level on a shorter wearer, where it swings when walking and sits exactly where a hand in a crowd would want it. A sling should sit high on the chest or snug against the back, not bounce at the waist.

If you are buying blind, the safest choice is a mid-size bag with a wide adjustment range from a listing that publishes both the minimum and the maximum. That is a surprisingly short list, and it is worth filtering on before comparing anything else.

PickSize classNotable featureBest for
WATERFLY Crossbody SlingDay bagLargest rating history hereFull day sightseeing
NICGID Sling BagDay bagLaptop capableCommuting and travel days
G4Free SlingEveryday carryRFID blocking pocketGeneral travel
SKYSPER SlingEveryday carryRFID, highest rated hereTravel with documents
SEAFEW Anti-TheftEveryday carryConcealed zip designCrowded cities
Inateck Sling Bag XEveryday carryMulti-pocket organisationOrganisers
BULLCAPTAIN XB-129Everyday carryGenuine leatherSmart evenings out
EVANCARY Small SlingPocket replacementLightweight, unisexWarm weather trips
higouta Mini SlingPocket replacementSmallest herePhone, cards and keys only

If you need to carry considerably more than any of these hold, our guide to outdoor backpacks covers the next size up.

Why You Should Trust Us

Every bag here was checked against its live listing for capacity class, material, whether an RFID pocket is included, and what anti-theft design is actually claimed rather than implied. Where a feature is marketed heavily but delivers less than buyers assume, as with RFID blocking and pass-through USB ports, we have said so rather than repeating the claim.

We have not carried these bags through an airport, and we do not pretend to have. What we can do is separate three quite different size classes sold under one search term, explain which security features are substantive and which are decoration, and point out the airline personal item rule that makes a sling more useful than it first appears. More travel gear is covered in our luggage and travel section.

Final Thoughts

The WATERFLY Crossbody Sling is our best overall pick. It sits at the useful end of the day bag range, carrying a tablet, a jacket and a bottle without turning into a backpack, and it has accumulated more customer feedback than anything else in this category by a wide margin, which in a market full of near-identical bags counts for a great deal.

For best value, the NICGID sling gives you laptop capability at a price that undercuts most bags of that size. If your sling doubles as a work bag on travel days, this is the sensible choice.

After that, buy to the trip. The SKYSPER or G4Free for general travel with documents, the SEAFEW if you are spending time in crowded cities and want concealed zips, the Inateck if you like everything in its own pocket, the BULLCAPTAIN if the bag needs to look good at dinner, and the EVANCARY or higouta if you simply want to leave your pockets empty. Whichever you choose, wear it on your front in a crowd and alternate shoulders on a long day. More gear guides are collected in our articles section.

Frequently Asked Questions

Do I really need RFID blocking in a mens crossbody bag for travel?

Probably not, though it does no harm. Modern contactless cards use one-time cryptograms rather than transmitting a reusable number, higher amounts need a PIN or phone confirmation, and recent passports carry shielding in the cover. Take it if it comes free with an otherwise good bag, but do not choose a worse bag to get it.

Does a sling bag count as a carry-on or a personal item?

On most airlines it counts as your personal item and goes under the seat in front, leaving your cabin bag allowance intact. Budget carriers size personal items strictly, so check the dimensions against your specific airline before assuming a larger day-bag sling qualifies.

Front or back: how should I wear it?

On your back while walking in open space, swung round to your front in any crowd, on transit, or in a market. A sling worn behind you is simply a one-strap backpack and is no harder to open unseen. Swinging it round takes a second and is the single most effective security measure available.

Are the built-in USB charging ports useful?

Rarely. The port is a pass-through cable rather than a battery, so it only does anything if you already have a power bank inside the bag, in which case you could run the cable out through a zip. It also adds a hole in the fabric and a component that can fail.

Will a water resistant bag survive rain in 2026?

It handles drizzle and short showers; in sustained rain water enters through the zips regardless of the fabric coating. If electronics are inside and real weather is likely, carry a light dry bag or a zip bag within the sling. More travel advice is collected in our category index.