Patent pending. Deep draw liner for more permanent vacuum insulation. Vacuum insulation provides optimum heat retention at least 8X longer. Two Silicone rings add style and grip. Lip groove allows you to position the drinking spout without looking. 18-8 Stainless Steel dual wall, Copper lined vacuum insulation Flip-top lid design with snap locking closure prevents drinks from spilling Simple and easy to clean Made of FDA compliant materials.
2.75" D x 2.75" W x 9" H