Come and see our amazing products. The hydration pack features fully adjustable shoulder, waist straps and a padded mesh back that will fit almost all chest sizes; The air flow system prevents sweating & provides comfort. Extremely lightweight and comfortabe for all day. Intelligent storage of two layers design avoids being bulky, which is perfect for cycling pack or running; External bungee straps for additional carrying -eg. helmet or Jacket; Small front zipper pocket for keys, compass, phones, snakes etc . The price not including Water Bladder. Pls confirm with us about the packing info, stock color and exact production time before placing your order