The Simple Modern Trek Tumbler is double walled and vacuum insulated to keep your drink hot or cold for hours. The cup is outfitted with an ergonomic handle, that is aesthetically designed for comfort. It comes with a straw lid and removeable straw so you can enjoy your favorite beverage on the go. The straw lid is four-way threaded to allow four different straw placements for your drinking hand preference. The Trek is made from 18/8 stainless steel and fits standard cupholders.