1. The high-strength waterproof fabric is not afraid of rain and snow, and the backpack is made of nylon, which has the waterproof effect like lotus leaf, and can be wiped dry with water to better protect the contents of the bag. 2. The practical insulation bag has a temperature when drinking water. The backpack is specially designed with insulation bag, aluminum foil insulation lining material, and the water bag can be placed in the bag. It is more convenient to fix it with hook and loop fixing belt (this product does not include water bag, and the water bag needs to be purchased separately). 3. Large-capacity bags can meet the needs of long-term outdoor activities, and various objects are always available for mountaineering. Multi-pattern design can make you regular and orderly. 4. The reflective strip of shoulder strap is designed. The shoulder strap is equipped with a high-strength reflective strip, which makes travel safer; Telescopic shoulder strap design, the length of shoulder strap can be controlled, suitable for people of different heights. 5. Anti-sway chest buckle+intimate design of survival whistle, which fits the back better and is not easy to slide down, and the built-in survival whistle is more convenient; The buckle is optimized, and the backpack is customized, which is durable and will give you long-term companionship.Products from NIUNIU's store