Omgogo Insulated Travel Mug & Stainless Steel Water Bottle & Bullet Head Vacuum Cup & Vacuum Mugs & Coffee Mugs (18 (Oz), Red) Stainless steel vacuum insulation keeps beverages hot or cold for hours Durable and sanitary 18/8 stainless steel interior Wide mouth accommodates full size ice cubes Compact design takes up minimal space while maximizing capacity