Sealock Waterproof backpack men and women unlimited, essential for water sports.The Dry waterproof backpack is a basic backpack with excellent waterproof performance, combining professional functionality and a stylish appearance. The surface waterproof tarpaulin is made by welding polyester fibers with synthetic resin film, which has excellent waterproof performance and is not easy to tear and resistant to friction under harsh conditions. The anti fouling surface is easy to wipe with a small amount of dirt, making it easy to clean. Rich in size and color variations, suitable for a variety of scenarios, from real outdoor to daily use. The storage of small items comes with inner pockets , as well as a water bottle bag and phone bag that can be installed on all shoulder straps.Front buckle, convenient for hanging objects, more convenient for travel.Reflective strip, strong reflection,Safer at night.Strap adjustment, free length adjustment, fit comfortable state.Anti splash zipper/professionally made/smooth and easy to pull.Fully adapted to travel, fitness, skiing, diving, mountaineering and other sports scenes.