Explorer Tactical Assault Pack - Combat Rucksack - 17" Military MOLLE Backpack 27L (Mossy Oak) Original Mossy Oak Brand Tactical 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. Explorer B3 Military backpack 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.Polyester 100% Tactical assault pack backpack's waist straps and chest straps are removable as heavy duty work or school backpack, please check straps before you use it in order to avoid straps fell off and lost. Tactical backpack has molle system, MOLLE is a little different as most tactical molle bacpkacks and is not to spec. Spacing between of molle is less than 1/2" Tactical assault backpack Capacity: 34L. Size approx.:11"*18"*12" (W*H*D), it's not big backpack; Military backpack is made of high density fabric--durable and water-resistant. Explorer B3 have 1inch thick padding at back. With extended long stop restrain straps and extra wide than any one in the market.