It is a small backpack, suitable for those people who do not want a big size and just need to take necessity when doing outdoors sports. Highly tear resistant Nylon, Water-resistant, Lightweight, Scratch-resistant, Durable & Comfortable. Provides you a long-term, secure daily using. reathable mesh shoulder straps which helps relieve the stress of shoulder. Multiple compartments offering enough place to save your belongs more detailed classification and well. Bottle holder on the both sides. With high quality smooth zipper and durable whistle buckle.