TRIPLE-LAYERED INSULATION: S’well 24oz stainless steel Tumbler with Straw. Triple-layered, vacuum-insulated construction. Exclusive Therma-S’well Technology keeps beverages cold for 18 hours and hot for 5. Sleek and beautifully crafted. Top-rack dishwasher safe. THE PERFECT FIT: Features a thin, wide-mouth rim for easy drinking, plus a slide-open lid and flexi stainless steel straw for easy sipping. Perfect for iced teas, fountain drinks and smoothies. DON'T SWEAT IT: Offers a condensation-free exterior that won't sweat in your hand or on your table. WORRY-FREE HYDRATION: Made from 18/8, food-grade stainless steel with superior construction. BPA/BPS-free and reusable. Compliant with California Prop 65 regulations. SUSTAINABILITY WITHOUT COMPROMISE: You won't have to compromise fashion and functionality to live more sustainably with our sleek, beautifully crafted, built to last styles.