The Contigo Byron 2.0 Snapseal travel mug is a stainless steel vacuum flask, perfect for hot and cold drinks while out and about. With a generous capacity of 470ml, the mug features an easy to clean, removable lid made from BPA-free plastic. This leak-proof tumbler is supplied in a Sake grey finish with stainless steel interior and contrasting black grip band. Keeping drinks hot for up to six hours and cold for up to 12 hours, the Contigo Byron 2.0 travel mug is leak-proof when the lever is in closed position.