Features: Hydration Capacity: 20 oz / .6 L Weight: 4.8 oz Always: 100% BPA-Free Warranty: Got Your Bak Lifetime Guarantee Bottle Material: BPA-Free Eastman Tritan Copolyester. Tritan makes the eddy clear vibrant durable dishwasher safe and 100% BPA-Free. Cap Material: BPA-Free Polypropylene Bite Valve Material: The CamelBak Big Bite Valve is made from medical grade siliconeCountry of Origin: China