Exceptional Temperature Retention Engineered with double-wall vacuum insulation, the S2C 40 oz Stainless Steel Tumbler maintains optimal beverage temperatures for extended periods. Enjoy hot drinks for up to 8 hours and cold beverages for an impressive 24 hours, making it the ideal companion for your morning coffee, refreshing iced tea, or nutrient-packed smoothies. Whether at work, the gym, or on the road, your drink stays just the way you like it.