Double Wall, Vacuum Sealed, Copper Lined, 18/8 Stainless Steel Water Bottle With XACTknit™ Jacquard Woven Leash Strap. Keeps Beverages Hot For 12 Hours, Cold For 24 Hours. Dual Opening. Stainless Collar For Ice And Cleaning - Top For Sipping. Keeps Drinks Cold Up To 24 Hours And Hot Up To 12 Hours. Dual-Opening Top For Easy Cleaning And Ice. Powder Coating On Body For Extra Grip And Color Accent. Top Screw Cap With Integrated Leash.