The Polar Bottle Sport is transformed with bold new colors! - Self-sealing Zipstream High Flow Cap - Dual-wall insulation design keeps water cold twice as long - 24oz size - ZipStream cap features self-sealing valve - Removable CarryLoop and drinking valve for easy cleaning - Wide mouth for easy cleaning and ice cubes - Lightweight and easy to squeeze - Dishwasher and freezer safe - Phthalate and BPA free. - Double wall insulated - keeps water cold twice as long - Made in USA - Fits standard bike cages and most cup holders - Backed by a lifetime guarantee and free replacement caps