Details• 18-8 Stainless Steel dual wall, Copper lined vacuum insulation
• Vacuum insulation provides optimum heat retention at least 9X longer.
• Patented designed lid
• Features lip and finger grooves that allow you to position the drinking spout without even looking.
• Includes a leak proof screw on lid with a visual open/close push button locking closure.
• Lid can come apart for easy cleaning.
• Made of FDA compliant materials.