DVO? Dynamic Volume, Heavy Duty Scuff Protection, Engineered Wheel Housing System, All Terrain Wheel System, 600 Denier Polyester Fabric, Stand Alone System, 2 x Integrated Bat Pocket, 2 x Zipped Side Pockets, Internal Pouch, 2 x Moulded Rubber Handles, 1 x Padded Handle, Carry Straps, 8mm Heavy Duty ?D? Opening Zip, Rust Proof GM Designer Zip, Anti-Scuff Corner Protection