The YETI Rambler comes with their unique MagSlider lid, a simple magnet system that keeps the spout cover in place and removes the need for a more complex system, which means there are less moving parts. Taking a sip is as simple as flicking the spout and putting the Rambler to your mouth. The Rambler’s double wall stainless steel body keeps your drink at the right temperature for a long time, while the No Sweat DuraCoat gives you a firm grip on this travel mug. The Rambler fits all standard cup holder sizes.