The Surf Station and Corkcicle has teamed up to bring you this amazing tumbler! Make every day refreshing Classic Tumbler, aka the coolest cup ever. Crafted from stainless steel with proprietary triple insulation, it keeps contents cold and refreshing for 9 hours and hot for 3. Stays cold even longer with drinks containing ice. Plus, it comes with a sliding, shatterproof, see-through Lid.