600D nylon water resistant material with heavy-duty zippers, padded back, and padded shoulder straps with D-rings. Multiple adjustable straps with quality buckles fit your needs no matter what you are carrying. Molle system on the front and side makes it easy to add accessories for additional item storage. Adjustable waist belt/buckle and chest belt/buckle help for a more comfortable carry for heavier loads and greater distances. Velcro strips on the top compartment makes this backpack customizable by adding any hook and loop patch.