TempShield™ Our unique double wall vacuum insulation protects temperature for hours. Cold drinks stay icy cold and hot drinks stay piping hot so you can stay refreshed for any adventure. Pro-Grade Stainless Steel Made with 18/8 pro-grade stainless steel to ensure pure taste and no flavor transfer - and the durable construction stands up for whatever life brings. Proprietary Powder Coat Our proprietary powder coat means an easy-grip, sweat-free, and extra-durable bottle that you can take anywhere. Product Benefits Versatile, middle-of-the-road size TempShield™ insulation eliminates condensation and keeps beverages cold up to 24 hours and hot up to 12 hours Durable 18/8 Pro-Grade Stainless Steel construction BPA-Free and Phthalate-Free Compatible with Standard Mouth Insulated Sport Cap Lifetime Warranty Size & Dimensions 21 oz Volume 621 mL Mouth Diameter 1.91" Diameter 2.87" Height 9.4" Weight 11.3 oz