Best anti-theft travel backpacks

Read any listing in this category against these three and the field sorts itself out in about a minute.

1. A cut-resistant panel, with the material named. The real version is a lightweight steel mesh laminated into the fabric, and brands that use it say so explicitly. A listing that says "slash-proof" without naming what is in the fabric is making a claim with nothing behind it. This is the feature that separates the two Pacsafe packs from everything else here.
2. Zippers that fasten to something. Interlocking zipper pulls that clip to each other, pulls that loop under a tab, or a main zip that takes a padlock. The point is not that a determined thief cannot defeat them - it is that none of them can be opened silently behind you in two seconds, which is the actual attack.
3. An anchor strap. A wire-reinforced strap that secures the bag to a chair leg, a railing or a bunk frame. It sounds like an afterthought and it covers the single most common loss: a bag set down, hooked over a chair back, or left at your feet while you look at something else. Only the top pick here has one.

Two features that are almost always listed and almost never decisive: an RFID-blocking pocket and a USB charging port. The RFID pocket is worth having for contactless cards and is close to redundant for a US passport, which already carries anti-skimming material in its own cover - the best passport holders covers why. The USB port on every bag here is a pass-through for a power bank you supply, not a battery.

Buying well in this category means buying against the real threat rather than the cinematic one. Across the ways travelers actually lose things, the ranking is consistent:

• Set down and walked away from. The bag is on a chair, a luggage rack, a cafe floor, an overhead shelf. Nobody cut anything; you stopped touching it. An anchor strap and the habit of looping a strap through something fixed solve this, and nothing else does.
• Opened in a crowd. A hand in an outside pocket on a packed metro or at a festival. Hidden zippers, interlocking pulls and wearing the bag on your front in a crush all work here. This is the attack most "anti-theft" design is actually aimed at.
• Taken in transit. Between a station and a hotel on arrival day, with everything you own on you. This is the one case where a cut-resistant panel earns its keep, and where keeping documents on your body rather than in the bag matters more than the bag does.
• Cut open. Genuinely rare, and overwhelmingly a bag left unattended rather than one on your back. Worth guarding against on a long overnight bus or train; not worth reorganizing your whole purchase around.

Every feature on this page is a small tax you pay each time you open the bag, whether or not anybody is trying to rob you. Interlocking zippers take two hands. A padlocked main compartment means finding the key or the combination. Hidden zippers mean reaching around to a pocket you cannot see.

That tax is the reason so many anti-theft bags end up used with every security feature disengaged - which is strictly worse than buying an ordinary bag, because you paid for hardware you are not using and you are carrying its weight. The honest planning move is to decide in advance which features you will actually use on which days: locked and anchored on a long transit day or an overnight train, zipped normally for a walk to dinner.

It is also why capacity and comfort still matter. A security bag that is uncomfortable after four hours gets left in the room, and a bag in the room protects nothing. If a conventional travel backpack is a better fit for your trip, the best travel backpacks and best carry-on backpacks rank on carrying rather than on security.

If you already own a backpack you like, a few cheap additions get you most of the way to an anti-theft pack without replacing anything. Worth doing first, because they also improve whichever bag you buy next.

1. A small padlock, and the habit of using it. Locking two zipper pulls together on your existing bag defeats the crowd-pickpocket attack almost as well as purpose-built interlocking zippers do, because the attack depends on being silent and quick. Best luggage locks covers which ones a screener can open rather than cut, which matters if the bag ever gets checked.
2. A Bluetooth tracker in an inside pocket. It does nothing to prevent a theft and a lot for the far more common case - a bag left behind in a cafe, a train rack or a hotel lobby. In populated places it reports a position through other devices nearby, and the left-behind alert is the part that saves the day. Best luggage trackers covers which work on which phone.
3. Something that is not the bag. Passport and primary card on your body, backup card and cash somewhere else. A neck wallet is a transit-day tool rather than an everyday one, and the best passport holders covers that whole decision, including why the RFID shield everyone advertises matters less than the closure does.

Do all three and the marginal gain from a dedicated anti-theft backpack is the cut-resistant panel and the anchor strap. That is a real gain for long overnight transit and crowded transfers - it is just a smaller one than the category's marketing implies, and knowing the size of it is how you decide whether to spend.

The two packs at the top of this page cost real money, and most of it goes into hardware you can see on the listing. If that is out of range, the budget pick above covers the crowd-pickpocket case for very little - and if you would rather spend the same money on a better ordinary bag, the best luggage under $100 covers which categories survive that budget intact.