Assault pack backpack with double-stitched, Heavy duty zippers and utility-style cord pulls, Side and front load compression system, Ventilated mesh padded back area & shoulder strap,breathable and comfortable. Military backpack has hydration compatible that works great for a ...Assault pack backpack with double-stitched, Heavy duty zippers and utility-style cord pulls, Side and front load compression system, Ventilated mesh padded back area & shoulder strap,breathable and comfortable. Military backpack has hydration compatible that works great for a hydration bladder (backpack didn't include hydration bladder) as hydration backpack or outdoor camping hiking backpack.