Superior performance, a sleek silhouette and an extensive collection of beautiful designs sets S'well apart. • Features Therma-S’well® Technology with triple-layered, vacuum-insulated construction designed to keep beverages colder or hotter, longer than all the rest.

Features:

• Keeps drinks cold for 36 hours.
• Offers a condensation-free exterior that won't sweat in your hands or bag.
• Made from 18/8, food-grade stainless steel.
• BPA/BPS-free and reusable. 
• Hand-wash only.