The SSE Backpack from Explosive Ops Gear (EOG) is quite handy especially if you need a backpack you can easily pack away after use or have an extra bag somewhere in your uniform pockets in case you need it for carrying more stuff... "The SSE Backpack compresses into a small 4 oz ball and expands into a roomy, tough as nails backpack made of incredibly durable Duro Epsilon fabric. Features include fully adjustable straps with quick releases and pull tight locking closure. This pack will become a staple in your assault kit.

Backpack measures 13in x 19in. American Made."