Polar Bottle- Insulated 24 oz. Aero Tech Designs cycling water bottle If you ride a bike and you like your beverage cool and refreshing then this is your water bottle. Made in the USA and customized for Aero Tech Designs these water bottles are sure to keep you hydrated. This patented Polar Bottle water bottle features an insulating layer between two walls of plastic, keeping liquids cool twice as long as other water bottles. For cycling and recreational use all Polar bottles fit standard bike water bottle cages and features a convenient, removable carrying strap for hiking or everyday use. All Polar Bottle products are and always have been, BPA-free and Phthalate-free, so use often and help save the planet one water bottle at a time!