Made for modern movers, commuters and travellers, this larger capacity mug featuring THERMALOCK Vacuum Insulation ensures drinks stay hot for up to 5 hours and cold for up to 12 AUTOSEAL technology is leak and spill proof, featuring easy one-handed drinking with the push of a button which locks for added peace of mind Easy clean lid completely opens for an extra squeaky clean with no separate parts to take apart or misplace Designed to fit most car cup holders and under most single serve brewers Style number: 507511