Premium Material: The inner layer of this water reservoir is made of PE material and the outer layer is made of EVA material, which is wear-resistant and anti-corrosive, BPA free, odorless and non-toxic, it is safe for drinking water.

Leak-Proof Design: The water bladder has passed pneumatic pressure test, it is completely pressure-tolerant. Double sealing side technique has greatly improved durability. Auto shut off when tube is removed, ensuring the 2 liter water reservoir remains filled without leaking.

Large Opening, Easy Refill and Clean: The wide opening is large enough for your hand to clean the water reservoir, easy to refill water and put in ice cubes. The large opening allows you to reach inside to get your water reservoir a thorough cleaning.

2L Large Capacity: This water bladder is 2 Liter. It is the best choice for outdoor activities, enough for a day’s drinking during hiking, cycling, climbing, running or biking. 34 x 17 CM in size, the tube length is 100cm, long enough for drinking directly from the backpack.

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