The first double wall vacuum insulated bicycle water bottle designed to fit in the bottle cage. No additional attachments needed - simply fill up and ride. Full hammertone coating on our insulated bike water bottles provides excellent scratch resistance compare to normal powder coated sports bottles. The vacuum insulation in our bike bottle keeps liquid hot or cold over 9 hours. Enjoy cold drinks on the go. Bicycle Water Bottle Insulated seamless construction to prevent heat transfer, no condensation (or sweat) ever. Constructed with the premium grade 18/8 grade stainless steel, BPA free for sport bottle and lids