FlexWear 800ml/27 Ounce Double Walled Vacuum Insulated Stainless Steel Water Bottle for Hot or Cold Drinks, BPA Free, Hydration Bottle High capacity water bottle, still compact enough for on-the-go use. Double walled stainless steel construction with vacuum-sealed cap providing long lasting insulation for both hot and cold drinks. Unique dual cap design with both easy-to-access sipping spout and a handy wide mouth opening. Double walled design also ensures no sweating or condensation. Perfectly suited for storage in your purse, gym bag, or book bag with no damp mess. Crafted from 18-8 food grade stainless steel and, unlike plastic water bottles, contain absolutely no hazardous BPAs whatsoever. Each of our water bottles is built to last a lifetime and is covered by the Flexwear Lifetime Guarantee.