West Loop is made for the modern movers, shakers, commuters, travelers - and for the urban explorer in all of us. 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 7 hours and cold up to 18 with THERMALOCK™ Vacuum Insulation Lend a Hand - Easy one-handed drinking with the push of a button Squeaky Clean - Lid completely opens for an extra squeaky clean with no separate parts to take apart or misplace Lock it Up - AUTOSEAL® button lock for added peace of mind Nothing but the Best - AUTOSEAL® is America's #1 selling* line of travel mugs Perfect Fit - Fits most car cup holders All Contigo products are BPA free