Yeti Sidekick Dry 3L waterproof gear case for cooler or its own. Includes belt strap. Facts from their site: Enough space to stash your phone, sunblock, and snacks Hydroshield™ Magnetic Closure keeps your gear dry Compatible with all Camino® and Hopper® products and the Panga® Backpack 9.5"W x 2.3"D x 5.5"H