Made Of Stainless Steel With Copper Plated Inner. Double Wall Construction For Insulation Of Hot Or Cold Liquids. Keeps Drinks Cold 9+ Hours And Hot 3+ Hours. Vacuum Insulated. Holds Most 12 Oz. Cans And Glass Bottles Including Beer, Soda And Sparkling Water. Non-Slip, Scratch Free Silicone Base. Fits Most Standard Cup Holders. Swig Life™ Is A Certified SWaM Owned Business. Women Owned. Meets FDA Requirements. BPA Free. Dishwasher Safe.