• Copper-lined, vacuum-insulated deep draw liner maintains optimal drinking temperatures and provides 8X heat retention
• Stainless Steel dual-walled construction
• Lead-free vacuum seal
• Features a screw-on, spill-proof AS plastic with unique flip top design and Tritan snap locking closure lid
• Keeps ice for over 24 hours
• Sweat-free design
• Powder-coated finish
• 1-year limited warranty
• Patented