MATERIAL: It has been proved that outdoor recreations are best equipped with a 2l hydration bladder which will not add burden to exercise but supply enough water for 6 hours outdoor exercise. water bladder is made of BPA free food grade materials tear and high temperature resistance designed to be leak proof with self-seal technology. It holds a half gallon of water or your favorite sport drink. Nontoxic TASTE-FREE and BPA-FREE interior keeps your drink safety and healthy. DESIGN: Its large opening allows quick filling cleaning and drying. Easy to disassemble pipe easy to replace and store it. No leakage. Strong pressure bearing capacity with seaming technology so you do not worry about water bladder pressure blasting. Capacity: 2L. DRINK COMFORTABLY WHILE EXERCISING: When you re out doing a run or cycling getting a drink can be an ordeal. water bladder makes getting a refreshing drink on the go easy. Open the dust-proof lid of the tube gently bite the straw to suck water and then be handsfree. The simple to use tube straw allows for getting cool replenishing water easy without having to take your eyes off the road to reach for a bottle. The straw has secure closing mechanism to prevent leaks. APPLICATIONS: This water bladder is the ideal solution for staying cooler when youre running cycling hiking climbing hunting or backpacking or any activity you need your hands free. It is perfect for snowboarding hiking running cycling skating trekking camping jogging climbing and so on. Note: Do not fill boiling water alcohol carbonated drinks etc. Your satisfaction is guaranteed