These Wide Opening Waterproof Duffel Bags Are Constructed With Pvc Fabric And A Ti Zip Waterproof Zipper. They Secure To Frames And Cargo Loops With Four Tie Down Points. It Is Large Enough To Keep All Your Gear In One Bag And Features Compression Straps And Carry Handles. Dimensions Large: 35" X 22" X 12" | Medium: 29" X 20" X 11" | Small: 20" X 11" X 10".