Premium MaterialThe inner layer of this Hydration Bladder is made of PE material, and the outer layer is made of EVA material, which is durable and corrosion-resistant, BPA-free, odorless and non-toxic, it is safe to drink.

Leak-Proof Design: The water container has undergone pneumatic pressure testing, it is completely pressure tolerant. Double sealing technology on the side has significantly improved durability. Automatic shut-off when the hose is removed, the supply of the 2 liter water container will remain filled without leakage.

Large Opening, Easy to Fill and Clean: The wide opening is large enough for you to clean the hydration bladder, easy to fill with water and add ice cubes. The large opening allows you to reach into the corners inside to give your water container a thorough cleaning.

2L Large Capacity: This water bladder is 2 liters. It is the best choice for outdoor, enough for a day's drinking when hiking, cycling, climbing, running or biking. 34 x 17 CM in size, hose length is 100 cm, long enough to drink directly from the backpack.

Perfect for Hydration Backpack: Compatible with most hydration packs, simply fill with fresh water and insert into a backpack. To hydrate, gently bite the valve and suck as you would from a straw. Perfect for all types of outdoor activities, such as hiking, cycling, marathon, camping, climbing, running, skiing, jogging.