Come and see our amazing products. Breathable mesh back panel for maximum comfort and ventilation; The adjustable shoulder/ chest/ waist straps for optimal carry and fit and make sure the pack does not bounce when you move. Reflective strips keep you visible in low-light environments.Perfect hiking backpack for men, women, girls, boys.This hiking daypack can also be used as a hydration backpack or portable cooler for both indoor and outdoor. There is even a clip on your right shoulder strap to help fix the hose of the bladder.is specially designed for road cycling, running, hiking. It is compact structure, small size, make your back lightweight and stable, will not produce a lot of wind resistance. It's the ideal choice for running, cycling biking, hiking climbing and so on .The below price is include 2L water Bladder. Pls confirm with us about the packing info, stock color and exact production time before placing your order.