Features: Made of premium food grade TPU material.Reusable,BPA-free and safe to use. Convenient straw design and bite mouthpiece with lock valve,easily drink water flow per sip. Large mouth to easily refill your favourite drinks,and convenient to clean. Leakproof sealing edge makes sure the pressure tolerant and leak proof features. Optimum Temperature is from -20 to 50,portable to store hot/cold water during outdoors activities. Can be folded into a very small size,and placed in your backpack. Hanging holes to easily attach to your backpack. Suitable for riding,running,cycling,camping,hiking,mountaineering,etc. Specification: Capacity: 500 ml Size: 300 * 75 mm / 11.8 * 3.0 in Material: TPU + Silicone + PP Optimum Temperature: -20 - 50 Weight: approx. 43.3 g / 1.5 oz Package size: 31 * 12 * 4 cm / 12.2 * 4.7 * 1.6 in Package weight: approx. 47.7 g / 1.7 oz Package List: 1* Soft Water Bottle (with a straw)