This Nalgene bottle is BPA free. Made w/out Bisphenol A (BPA) using Eastman Tritan™ copolyester material. Features: --Fits most water filters and purifiers. --Great for storing liquid, powders, solids, soups, etc. --The attached loop-top will keep it from getting lost. --Screws on and off easily. --Liquid measurements in ounces and milliliters. --Durable and resistant to staining. --Resistant to retaining odors. --Dishwasher safe; remove cap or make sure the cap does not touch the heating element. --Withstands temperatures from -40°F to 212°F. --Measures 8 x 3.5 in. --Weighs 6.4 oz. --Made in the U.S.A.