5L Hydration Backpack Pack

The hydration backpack is made of high-quality nylon material, which can store mobile phones, flasks, keys, energy supplies, wipes, etc. It can also store disposable raincoats, water bottles, etc., providing you with everything you need for exercise. Very suitable for long-distance races, mountaineering, cycling, hiking, and more. Wear it and go exercise with friends and family.Customized is available