The Primus Commuter Mug is a double-wall travel mug that is the perfect solution for when you want to drink on-the-go. This mug is tapered to fit in your hand on your way to work and with a single finger click of a button opens the mug to deliver your beverage at any time. Made for your weekly commute, this double-walled plastic mug is durable, and can keep your drink hot or cold and a large opening makes it easy to fill and clean.