Shutoff valve prevents the bladder from leaking after the tube is detached, convenient for filling, cleaning and storage. The tube is covered with an insulating waterproof Neoprene sleeve to prevent water in tube from freezing in winter and from overheating by direct sunlight in summer, keeping water fresh and cool.
The whole hydration bladder is made of premium TPU material, pressure-tolerant. The water reservoir is taste free and 100% food grade. This tested to comply with international safety standards. It won’t leave a bad taste in your drink.
