Rainproof and waterproof, shockproof and wear-resistant, simple, firm and large capacity Scratch/tear resistance, even if it is rubbed by branches, etc., it will not cause fabric damage, open lines, etc.ents. Effectively resists the damage to the items in the bag caused by the shock during riding, and it is safer to place valuables Adjustable shoulder straps help customize water bags according to your needs. For cyclists, hydrates are perfectly suited between most scapulae to avoid grabbing anything while cycling or even hiking. This design is not a traditional water bag because its weight is concentrated on the back rather than the shoulders, just like a more traditional water bag. The gift of choice for outdoor enthusiasts 1. Rainproof and waterproof, shockproof and wear-resistant, simple, firm and large capacity 2. Scratch/tear resistance, even if it is rubbed by branches, etc., it will not cause fabric damage, open lines, etc.ents. 3. Effectively resists the damage to the items in the bag caused by the shock during riding, and it is safer to place valuables 4. The gift of choice for outdoor enthusiasts