MoMA Exclusive: For those days when you don’t want to head out with your standard water bottle, this Poketle Insulated Tumbler fits in your pocket. Originally designed for the Japanese market as the smallest stainless steel thermos available, this tumbler stands just under six inches tall with a 4oz capacity, and is perfect for biking, short excursions and just days when you want to carry a little less weight. Its thermal insulation keeps beverages cold or hot for six hours. Perfect for when you want to hit the road with a shot of espresso! The Pocket-Sized Insulated Tumbler measures 5.6h x 1.7"diam. and has a silicone-gum bottom for stability. Hand wash only.