100% WATERPROOF GUARANTEED: Utilizing high-frequency seam bonding technology, our dry bag backpack ensures your essentials stay dry during all your adventures — be it kayaking, hiking, skiing, river tubing, jet skiing, fishing, hunting or on a boat. It even floats in case it ends up in the water. ORGANIZED & SECURE STORAGE: Benefit from a spacious interior for all your must haves, alongside 1 mesh pocket perfectly sized for a water bottle. And the splash-proof outer pocket provides quick access to important accessories like keys and cell phones (note: this pocket is not fully waterproof if submerged). EASY-TO-USE ROLL TOP CLOSURE: Keep water out effortlessly with our intuitive roll-top closure. Simply fold the dry pack down 3-4 times, secure the buckles, and you're set for any adventure! UNMATCHED COMFORT & CONVENIENCE: Our ergonomic large drybag includes padded back support plus a sternum clip to help distribute weight evenly, relieving muscle strain. The cushioned straps are also adjustable for a customized fit. Finally, the handy side-mounted D-rings and front cargo straps keep your gear organized and within reach. ENHANCED SAFETY FEATURES & DURABLE DESIGN: Travel with peace of mind thanks to a reflective strip for increased visibility in low-light conditions, plus a whistle for emergency situations. Made of high-quality materials, these marine dry bags were built to last. STOVER Waterproof Dry Bag Backpack