KAVU Rope Sling is made of polyester, making it water resistant. It also has an ultra-comfortable adjustable rope shoulder strap with side release buckle, two vertical zip compartments, two key or cell phone pockets, and a padded back with KAVU embroidery. Dimensions: 20" x 11" x 5" (10L or 610 cu in). Outside upper flap pocket dimensions: 5.5" x 3.5". Outside lower zip pocket dimensions: 7" x 4". Cross body strap length: 22" - 44". Fabric: 11oz 100% 600D polyester - water resistant. Bag weight: .8 lbs.