Military Tactical backpack size approx.:13"*20**11*/ 33*50.5*28CM(W*H*D),Capacity: 50L; Military backpack is made of high density fabric--durable and water-resistantMolle tactical backpack has molle system, Molle webbing throughout forattaching additional tactical pouches or gear as 3 day assault packbackpack combat molle backpack.Assault pack backpack with double-stitched, Heavy duty zippers andutility-style cord pulls, Side and front load compression system,Ventilated mesh padded back area & shoulder strap,breathable andcomfortable.Military backpack has hydration compatible that works great for ahydration bladder (backpack didn't include hydration bladder) ashydration backpack or outdoor camping hiking backpack.Tactical assault pack backpack can be used as 3 day assault pack, rangebag, hunting backpack, survival backpack, backpack, trekking backpackor day pack for daily use