1.Main material in 600D polyester, high dense woven, waterproof 2.Hipbelt for load stability 3.One main compartment with large zipper opening allow easy stuff 4.One front pocket for easy extra storage 5.Two mesh sides pockets hold water bottle or other small items 6.Two compression straps attached for skyboard or helmet 7.Air mesh tex padded shoulder straps 8.Sternum strap and waist belts for stabilizers and quick adjustment 9.Fully padded mesh backpanel