Netpack 19" Casual Use Gear Bag (Black) Made of lightweight 1000-denier polyester with moisture resistance vinyl laminated . Interior is fully lined with 210-denier polyester, with padded bottom. This bag is made for 3 way use, side shoulder strap, top grab handle & backpack. Main compartment opening is specially design for easy packing need. Two side compartment with a nylon coil zipper closure with easy storage.