Description 40 oz Corkcicle® Stainless Steel Triple Insulated Keeps beverages cold for up to 20 hours and hot for up to 9 hours. Features flat sides and a handle for easy gripping. Exclusive dual-function sip + straw lid ensures spill-proof convenience. Comfort-grip handle for comfortable carrying on-the-go. Non-slip silicone bottom keeps the tumbler upright in any situation.