Waterproof Foldable Super Lightweight Large Capacity Storage Luggage Bag for Travel Camping, Sports Gear or Gym, Can Attach on the Handle of Suitcase, to Travel Freely Around Universe (Blue) Material:Polyester,Zipper closure,reinforced handles and adjustable strap. High workmanship ensure high quality, light weight but durability Size: 18'' x 8'' x 13.6''(LxWxH) folded size: 7.68''x 5.7''You can fold it up into a packet as the picture show A RELIABLE TRAVEL ESSENTIAL; Unfold at the airport to avoid excess baggage charges, to carry your gifts and souvenirs, or to transfer your things from your damaged suitcase INTENDED USE: Gym, Sports, Travel, Luggage, Carry-on Bag, Hiking and Camping. It is waterproof,so you do not need to worry about carrying it in the rainy day.