Custom imprinted promotional logo 16 oz. Stainless Steel Tri-Roll Travel Mugs have foam insulated for optimum heat retention. Exclusive patented design. Dual wall Japanese 18-8 stainless steel construction. Spill-Resistant lid with thumb slide closure and double wall design to keep lid cool. Quality tested for lasting performance. Contoured soft rubber handle offers a relaxed grip. Non-skid bottom. These custom printed mugs are great for school, travel, business or gift giving.