About this 16 oz Wave Vacuum Travel Mug:

• 18-8 Stainless Steel dual wall, Copper lined vacuum insulation.
• Deep draw liner for a more permanent vacuum insulation.
• Vacuum insulation provides optimum heat retention at least 7X longer.
• Constructed of FDA compliant materials.
• Features a removable twist handle that can convert your travel mug into a tumbler.
• Includes a flip top lid design with snap locking closure.
• Patent pending.
• Handwash only.