Contigo AUTOSEAL l Randolph Travel Mug, 16oz, Watermelon 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 4 hours and cold up to 12 with THERMALOCK Vacuum Insulation Squeaky Clean- Easy clean lid completely opens for an extra squeaky clean with no separate parts to take apart or misplace Lend a Hand- Easy one-handed drinking with the push of a button Righty or Lefty- Thoughtfully engineered drink spouts on both sides of the lid make this the perfect mug for both left - and right-handed users Lock it Up AUTOSEAL button lock for added peace of mind