SNAPSEAL Byron Snap to it with Snapseal ! This larger-capacity mug works hard so you don't have to — just snap the lid open and closed so it's sealed shut (and leak-proof!) when you're done sipping. Enjoy a hot cup of joe up to 9 hours after you poured it, thanks to THERMALOCK vacuum insulation. eal It In – Leak proof lid (when closed) for on-the-go activities For the Long Haul – Drinks stay hot up to 9 hours and cold up to 21 with THERMALOCK Vacuum Insulation Lend a Hand – Easy one-handed drinking Perfect Fit – Fits most car cup holders Get a Grip – Easy grip to grab and go Clean Up – Top rack dishwasher lid, hand wash body All Contigo products are BPA free, have a limited lifetime guarantee and are designed by passionate inventors and innovators who have your mobility in mind.