Tactical assualt backpack Capacity: 34L. Size approx.:11"*18"*12" / 28*45.5*30CM (W*H*D), it's not big backpack; Military backpack is made of high density fabric--durable and water-resistant The assault pack with double-stitched, Heavy duty zippers and utility-style cord pulls, Side and front load compression system, Comfortable padding back area, Ventilated mesh padding shoulder strap. Military backpack has hydration compatible that works great for a 2.5L hydration bladder (backpack didn't include hydration bladder) as hydration backpack or outdoor camping hiking backpack. This tactical assault pack backpack can be used as 3 day assault pack, bug out bag backpack, combat backpack, range bag, hunting backpack, survival backpack, rucksack military army backpack or trekking backpack. The molle tactical backpack has molle system, MOLLE is a little different as most tactical bacpkacks and is not to spec. Spacing between of molle is less than 1/2"