The Corkcicle Commuter Cup in 17oz Walnut is the perfect cup for those on the go. They’re made from insulated stainless steel with a slim design to fit nearly all bicycle cages and vehicle cup holders. They include a spill-proof 360° Sip Lid – so you don’t have to find where to drink from while you’re focused elsewhere. Your Commuter Cup will keep your beverages hot for up to 5 hours or cold for up to 18 hours, and the inside is ceramic-coated, so you only taste the drink you brought. These are the perfect travel companion for everyone!