1. coffee mug, with S/S 304 material inside, more safty and helthy for drinking. 2. The lid is not easy to be broken with TRITAN (PCTG) material, all plastic part BPA FREE. With food grade silicon, and environmental coating. 3. Vacuum mug, can keep warm and cold, will keep the best testing of drinking for longer time. 4. Big size mouth, able to lean by hand directly. available in black white green flesh