ONEDAY Vacuum Insulated Stainless Steel 16-ounce Water Bottle, Design for Sports & Outdoor Activities, Pink Ultra Thermal Insulation Ability: Keep liquid Cold for up to 12 hours and Hot for up to 24 hours. Make your beverage stay in favorite temperature for a long time. High Quality Material: premium grade 304 stainless steel interior keeps your beverage pure and refreshing, won't transfer the flavor to your next beverage. High quality colorful powder-coated matte finish exterior for a comfortable grip. Classical Thermal Insulation Structure: Double wall vacuum insulated stainless steel keep bottle cool to touch with hot liquids and sweat proof with cold liquids. Silicon non-slip mat on the bottom can greatly reduce the impact sound with desktop. Easy to Carry: The 16 oz portable bottle takes the most appropriate water bottle size in the outdoor activities. Compact design takes up minimal space while maximizing capacity. 100% Satisfaction Guarantee: Your satisfaction is our guarantee. 90 days 100% money back guarantee to ensure that you have a pleasant shopping experience . Do not hesitate to contact us directly if you are unhappy for any reason, we will try our best to make you satisfied.