This military backpack is made of 800D Oxford fabric, durable and wear-resisting. Assault pack 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. There is a hidden zippered pocket in the back, and many small pockets inside the bag, such as zippered pocket, mesh pocket, pen holders and small storage pockets.