WATERFLY 2L/3L Hydration Water Bladder Bag, Portable Leakproof TPU Water Bag for Outdoor Cycling Hiking Camping Climbing Food-Grade PEVA Material: Made of premium food-grade PEVA material, odorless and non-toxic, anti-bacterial and BPA-free, you can rest assured it is safe Durable & Leakproof: Double sealed sides add extra protection to the water bag, it is durable enough to stand a car wheel; while the lid is leakproof, youll never worry about water leakage Easy to Clean: The top clip allows you to slide to open the bag and provides an easy access to the pouch for filling, washing and drying, very easy to add ice cubes and clean Foldable & Portable: This water bag is soft and foldable when it is empty, easily fits into pockets, backpacks or brief cases, lightweight and portable for long hikes, walks, and generally small trips Multi-Functional: With 3L large capacity and durable features, it can be used to store water with temperature of -20C to 50C, WATERFLY water bag is perfect for military or outdoor sports like cycling hiking climbing running