Large Capacity Lightweight Backpack Outdoor Sport Climbing Mountaineering Backpack

Features:
The backpack has a thick, insulated layer. Insulated bubble compartment keeps your liquid cool or hot for up to 4 hours.
The hydration bladder is made of fine quality PEVA material. The water bag is tasteless and odourless. Have passed the pneumatic pressure test and 24-hour vibrations test. Large opening is easy to wash and add ice cubes. The mouthpiece makes drinking easier.
Ergonomically adjustable on shoulders, chest and waist, 3 straps are adjustable to reduce bouncing. You will never lose balance due to the water load. The soft air mesh back accelerates airflow and protects the back cool. The foam padded shoulder straps are extremely comfortable.
The backpack is the perfect choice for cycling, camping, running, music festival, rave and kayaking. A nice gift for families and friends.