Waterproof Water Resistant New Unisex Sports Outdoors Ecological Tourist Mountaineering Traveling Leisure Casual Daily Use Bike Bicycle Cycling Ride Riding Shoulders Bags Pack Backpack Daypack This is a specially durable and reliable backpack in stylish and fashionable design. Outdoor mountaineering bag and ecological tourist, enjoy outdoor activities. The chest strap design can be more suit for men and women of different chest size and length on the regulation. Bottom and top are designed with extensible system, according to the actual demand increases carry items, can also adjusted to backpack. Nice looking and durable material and heavy load bearing to take for hiking, climbing, outdoors traveling.