Tree-Free Greetings 25507 James Hautman Favorite Songbirds Sip 'N Go Stainless Lined Travel Mug, 16-Ounce Premium quality 16-ounce travel tumbler for hot or cold beverages Stainless steel inner layer, comfortably curved acrylic outer layer BPA free and Proposition 65 compliant Rocket seal prevents condensation from forming between acrylic outer and stainless inner; hand wash only, not dishwasher safe Favorite Songbirds themed bird art