A great "thumbs up" design for anyone named Duke, with the funny saying: Keep Calm and let Duke handle that! A funny idea for Christmas, birthday or father's day for dad & father. Perfect for all men who can do just about anything! The perfect gift for Duke. Whether for brother, colleague or best friend. You are called to help with everything and constantly hear: "Let Duke Handle that? Then this Duke Outfit the best for you! Also funny for children and Kids Dual wall insulated: keeps beverages hot or cold Stainless Steel, BPA Free Leak proof lid with clear slider