Made Of Stainless Steel With Copper Plated Inner. Triple Insulation Technology: Double-Walled, Vacuum-Sealed And Copper-Plated. Keeps Drinks Cold For 9+ Hours And Hot For 3+ Hours. Holds Most 12 Oz Slim Can Beverages Including Beer, Soda And Sparkling Water. Fits Most Standard Cup Holders. Swig Life™ Is A Certified Swam Owned Business. Meets FDA Requirements. BPA Free. Dishwasher Safe. Women Owned.