The sleek, skinny design might be one of the first things noticed about this tumbler, but it also has double wall stainless steel insulation, a spill reduction straw and comfortable rubberized finish. The matching lid and silicone straw complete the look. The narrow design of this 20 oz tumbler easily fits in standard cup holders and fits well in the hand. The double wall construction maintains the temperature of the contents so the last sip tastes as good as the first. Dimensions: 3" (Base) x 8.5"h (With Lid). Material: Stainless Steel with PP Lid and PP & Silicone Straw.