polar bottle insulated water bottle 24 oz - 100% bpa-free cycling and sports water bottle - dishwasher & freezer safe (white, 24 ounce) polar bottle cold or hot, this cycling water bottle keeps your drink just right! double-wall construction with insulating thermal layer keeps solar heat outside and polar temperatures inside wide mouth opening for easy filling soft rubber bite valve for comfortable hydration on the fly fits standard bicycle cages dishwasher safe polar bottles have always been bpa-free