* It is are made of premium TPU material .So it is BPA free.It won’t leave a bad taste in your drink.

* The 4” screw on cap goes on and off easily; for cold water, simply add ice cubes directly from a scoop or refrigerator ice dispenser; the smooth inner of hydration pack water reservoir promotes health and is easy to clean.

* It passed pneumatic pressure test, it is pressure-tolerant.The most advanced edge sealing technology can withstand 100KG pressure.

* Large opening for easy filling ,cleaning & drying.

* This 1.5L water reservoir can withstand temperatures from -20 to 50 degrees celsius; the tube resists temperature changes in hot and cold weathers;

* You won't be slowed down with our high flow bite-valve; simply bite the mouthpiece to suck water; soft mouthpiece with easily accessible ON/OFF valve; it also has a cover to keep dirt out; conveniently control the water flow by biting; quick-release tube is detachable; while the tube is removed, the connector automatically shut off and the hydration bladder will stay filled; store neatly in fridge/icebox without tangling hose