Always a Classic, our iconic Single Wall Classic Kanteens are made from certified 90% post-consumer recycled 18/8 stainless steel and our environmentally friendly and chip resistant Klean Coat® finish, making this Classic more sustainable than ever before. The lightweight, versatile design is easy to fill, easy to clean, and easy to love. Like all of our products, these vessels are—and always have been—BPA-free. The 18oz size features a narrow profile that is easy to grip and fits in most vehicle and stroller cupholders. Includes our 100% leakproof Flip Seal Sport Cap, opens and closes with just a flick of the thumb and offers two convenient ways to drink. Hold the bottle upright to sip from the detachable stainless steel straw or remove the straw and tip to use like a traditional sports bottle. Either way, the cap’s ergonomic design maintains a steady flow rate and is 100% leakproof.