Want to take your Klean Kanteen cycling? The Klean Kanteen Classic 18 oz. fits into most standard bike cages. But if you're looking for a little extra liquid on those long rides, check out the easy-to-install and durable Klean Kanteen Bike Cage for the Classic 27 oz.Features:Made of high impact polypropyleneDesigned for the Klean Kanteen Classic 27 oz. BottlePlease note: Painted (colored) Klean Kanteens will scratch and are not recommended for use with the Bike CageStandard allen bolts for securing the Bike Cage to your bike are not included.