swig life 18oz travel mug with handle and lid, stainless steel, dishwasher safe, cup holder friendly, triple insulated coffee mug tumbler in starry night print swig life thanks to our triple insulation technology, our best selling travel mug with handle and lid keeps drinks cold up to 9 hours and hot up to 3 hours. the cup holder friendly shape makes it the perfect travel companion, to and from the classroom, the conference room or even just your living room! plus of slip-free, scratch-free, and noise-free silicone base allows you set them down without making a peep.