This bottle from Nalgene is sized specifically for small hands. Features: --Made of Eastman Tritan™ copolyester...it provides excellent impact resistance and is suited well for both warm and cold drinks. --Dishwasher safe. --This bottle is completely BPA-free. --Durable, one-piece Nalgene Sipper valve™ limits spills and is easily removed for cleaning. --Rubberized lid. --Smooth plastic mouthpiece. --Lid loop can easily be clipped to a backpack, diaper bag or stroller. --Metric and English measurement markers. --Side indents are designed for little hands. --Won't retain tastes and odors. --Compatible with Nalgene OTG, ATB and standard loop-top closures. --Do not microwave.