Timolino VMT-35CBMAB 12-Ounce Biner Vacuum Mug, Aqua Blue 18/8 stainless steel inside and out Vacuum insulation keeps drinks hot, cold and fresh for hours Electro-polished interior ensures clean tasting Patent-pending biner clip on the cap allows you to take this mug anywhere you go to have fun; clip it to a bag or tote for hands-free portability Slim profile carries easily in the hand or in a small tote or purse