Function: Isosceles Storage System carries boots, helmet and gear; Fabric: Durable and tough, water resistant coated 600 denier polyester; Side boot pockets with air/water drainage grommets; Coated water resistant central compartment for gear; Water resistant tarpaulin bottom; Closed cell foam padded back; Adjustable neoprene padded shoulder straps; Internal zipper pocket, zipper mesh side pockets and top lid pocket; Double locking, self repairing nylon coil zippers; Volume: 2800 cu in / 46L