Contigo Snapseal Byron Travel Mug No matter what's going on in your life, the stainless steel Byron travel mug is the ideal companion. It makes your commute effortless with its one-handed use and a comfortable grip. The BPA-free lid features a push-button operation that allows you to sip or seal with just one hand, ensuring a leak-proof experience. This travel mug is designed for durability and convenience, keeping your beverages hot for up to 7 hours or cold for up to 20 hours thanks to its vacuum-insulated stainless steel construction.