The REI CamelBak Classic bottle stows your favorite beverage with a touch of style. Made of Eastman Tritan copolyester, bottle provides excellent impact resistance and is suitable for both warm and cold beverages. Tritan copolyester is BPA-free and completely dishwasher safe. Specially shaped bottle fits nicely in your hand and accommodates most automobile cup holders. Simply unscrew the cap to uncover the bottles wide-mouth opening for easy sipping, filling and cleaning cap size fits many other wide-mouth bottles. Metric and English measurement markers let you accurately mix energy drinks and monitor your hydration. Carry the integrated handle in the crook of a finger, or connect it to a pack or waistbelt with a small carabiner.