Custom imprinted promotional logo 16 oz. Stainless Steel Retro Travel Mugs are exclusive patented design. Dual wall construction with Japanese 18-8 stainless steel. Foam insulated for optimum heat retention. Contoured rubberized handle offers a comfortable grip.Spill resistant lid with thumb slide closure and double wall design to keep lid cool. Non-skid bottom. These personalized logo tumblers are perfect for the desk or commute everyday use.