The Kavu Women's Rope Sling Backpack fits the body like a bag should. It's similar in size (11" x 20") and design to its fraternal twin the KAVU Rope Bag with one exception: the Rope Sling is made of 600D polyester making it water resistant. It also has an ultra-comfortable adjustable rope shoulder strap, two vertical zip compartments, two key or cell phone pockets, and a padded back with KAVU embroidery. Plus, it comes in a wide variety of colors and patterns - so express yourself!