Contigo AUTOSEAL West Loop 1.1 Travel Mug, 16oz, Stainless Steel Our Lids Are Sealed- AUTOSEAL technology is leak and spill proof (Yes there is a difference!) For the Long Haul- Drinks stay hot up to 5 hours and cold up to 12 with THERMALOCK Vacuum Insulation End a Hand- Easy one-handed drinking with the push of a button Nothing but the Best- AUTOSEAL is America's #1 selling line of travel mugs Perfect Fit- Fits most car cup holders and under most single serve brewers Clean Up Top rack dishwasher lid, hand wash body