EcoVessel's Transit Mug is the classic mug you know and love reimagined in insulated stainless steel with modern lines, sleek design and unmatched temperature retention. The Transit makes the perfect beer mug, coffee mug or cocktail mug. Whether sitting around the campfire, cozying up on your couch or tailgating at the local stadium, the Transit Mug keeps your coffee steaming hot and your cocktails icy cold. TriMax triple insulated vacuum construction. Stainless steel. Cold up to 40 hours, hot up to 4 hours. Recyclable. Smooth drinking rim. Multi-position slider lid. Non-slip silicone base. Ergonomic handle.