Raise your style quotient with Nutcase Custom Insulated Bottle. Made with premium materials, including 304 Stainless Steel, this bottle will maintain the temperature of your beverage for up to 24 hours for cold drinks and 12 hours for hot drinks. It is BPA-free, leakproof, and has an easy-to-lock and unlock mechanism. The convenient built-in sipper allows for easy drinking. Ideal for outdoor activities, work, school, travel, and everyday use.