The CamelBak® Better Bottle is made of Eastman Tritan™ copolyester which is BPA-free and toxin free! Flip, Bite, and Sip. No tipping required. Spill proof even if it is left in the open position. This innovative bottle is very rugged, lightweight, and affordable. Mix your favorite energy drink or just monitor your daily liquid intake with the convenient measurements located on the side of the bottle. This bottle also features an integrated handle that works great with a small carabiner for attaching to a pack or waistbelt etc. Top rack dishwasher safe.