Thermostat shielding technology. Our unique double-walled vacuum insulation protects temperatures for hours. Cold drinks stay cold and hot drinks stay piping hot, so you can stay refreshed on any adventure. Made with 18/8 professional-grade stainless steel to ensure pure flavor and no flavor transfer - durable construction stands up to any life. Our proprietary powder coating means an easy-to-grip, sweat-free and exceptionally durable bottle that you can take with you everywhere. Whether you're biking on the beach or snowshoeing in the backcountry, you can easily stay hydrated with our wide mouth straw lid. Designed with stainless steel pivot points and a flexible band, this cap moves with you as you move. Plus, it's made with honeycomb insulation to keep drinks cold for 24 hours or hot for 12 hours, no matter what the weather is like outside. Our durable wide mouth straw lid is perfect for drinking in all your outdoor adventures. It fits all wide mouth bottles and is easier for you to carry thanks to the convenient carrying handle.