💧 WintMing 2.5L Hydration Bladder - Wide Opening, BPA Free & Leak Proof Water Reservoir for Hydration Backpacks Review

rubber. 【Premium Quality】All parts of the hydration bladder are made of food grade material which is BPA free, taste free, odorless and the water bladder passed pneumatic pressure and leak proof test, double sealing side technique has greatly improved durability. 【Perfect for Outdoor Active】The leak proof water reservoir with high flow bite-valve, so you need't slow down step and can conveniently control the water flow by simply bite the mouthpiece, 360 degrees rotatable mouthpiece allows for easy drinking, suitale for biking, running, hiking and other outdoor adventures. 【Leak Proof Water Bladder】Soft mouthpiece with easily accessible ON/OFF valve prevents leakage, insulated tube cover ensures more provides a leak-proof and to keep dirt out, when tube is disconnected, the shutoff valve closes automatically and the water bladder doesn’t leak at all. 【Easy to Clean & Fill】The 2.5 liter hydration bladder with wide opening makes for easy filling water and adding ice cube, you even don’t have to take out the water reservoir from your backpack. Also allows you reach every corner inside and give your water reservoir bladder thoroughly cleaning. 【Water Reservoir for Hydration Packs】This 2.5L water reservoir can withstand temperatures from -20 to 50 degrees Celsius. The tube resists temperature changes in hot and cold weathers. 15.7'' x 6.7'' hydration bladder is compatible with most hydration packs, keeping you hydrated when biking, cycling, hiking, or running.