The KAVU Rope Sling differs from the Rope Bag in material only. The Sling is made of 11oz 600D Polyester instead of the canvas Rope Bag. The polyester is has a water resistant finish. Adjustable shoulder straps, two vertical zip compartments, two key or cell phone pockets, and a padded back with KAVU embroidery. 20x11 600D Polyester