The bestselling Mighty mug is now available with Xpressive ink that becomes transparent or "disappears" when hot liquid is added. This mug starts out opaque black and reveals an inside and out vibrant full color imprint. This mug is hand-wash only and microwave safe. Price includes 1-color "cold" direct imprint & will vary slightly from the hot to the cold version. Due to the possible color shift, a physical proof is recommended. PMS color match cannot be guaranteed