Features:- Make every day refreshing with our 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 Lid. - Cool for 9+ hours, hot for 3.- Triple insulated.- Sliding, shatter-proof lid.- Stay-put silicone bottom. - Easy-grip, flat sides. - Stainless steel.