Staying hydrated is an important part of being healthy; Zak! Designs' innovative HydraTrak bottle with Chug Lid helps keep track of water intake;Monitor your water intake with included rainbow bands; one for every bottle of water you drink, wear them as bracelets or roll them up the bottle;Soft touch carry-loop integrated in lid slips over neck for convenient lid storage; threads are on inside of bottle opening for smooth drinking edge;Screw-on lid attaches securely for leak proof storage; perfect for use at home, in the office, at the gym or on the go; fits in most cup holders;Holds 24 oz. and is made of Tritan plastic that is durable and BPA-free; top rack dishwasher safe, do not microwave