When you’re heading down the dodgy part of town, you want to know that your particulars are safely stashed in the bag upon your back. What, though, if some naughty sort goes and slashes your straps?

2. Pacsafe Venturesafe Backpack If safety is a high priority for you, we’d definitely recommend the Pacsafe brand, which is designed with security in mind.

PacSafe Venturesafe G3 28 Liter Anti Theft Travel Backpack/Daypack-Fits 17" Laptop, Lakeside Blue Outpac Designs, Inc (PacSafe) 610 ratings View Product Buy it on Amazon More info 1 ...

Pacsafe Metrosafe LS350 15 Liter Anti Theft Laptop Daypack/Backpack - with Padded 13" Laptop Sleeve, Adjustable Shoulder Straps, Patented Security Technology, Black 582 ratings ...

PacSafe MetroSafe 350 Daypack Sometimes, you feel as if you need eyes in the back of your head when you're traveling with a backpack.

In this review of the Pacsafe Vibe 28L Anti-Theft Backpack, Consumer Reports says this travel backpack has loads of anti-theft protections—but could be better organized and easier to heft.

The next sizes up are a 15-liter Portable Safe ($200) that can be used as a backpack, as well as a 25-liter Backpack ($160). A 36-liter Beach Bag ($190) is also available for those big family days ...

The Pacsafe Daysafe 200, which came out last summer, is a tough computer backpack made out of tamperproof eXomesh material whose security features actually work best for durability. It includes a ...