Polar Insulated Water Bottles have a double-wall construction with foil insulation to keep liquids colder or warmer longer.All Polar bottles are BPA free and contain no phthalatesRemovable carry loopDishwasher safe, rubber valve is removable for cleaningMade in the US of LDPE plastic #4Double wall construction and unique reflective foil insulation keep your drinks cold|Item SpecificationsColorRed/BlackOunces24fl ozBottle TypeBike,Insulated