Cocktail sophisticated, outdoor durable. The umbler is constructed in double-walled, vacuum-insulated stainless steel, keeping hot drinks cozy and cold beverages chilly. It's topped off with a tri-mode lid for flow control so you can sip at your own speed. The heavy-duty powder coat is scratch resistant and allows you to toss the tumbler in the dishwasher when you're finished. A non-slip silicone pad on the base grips surfaces to avoid scratches and spills. Free of BPA, BPS, and BPF. ----------- Product Details - 18/8 Stainless steel with full powdercoat finish - Dishwasher safe - BPA, BPS, and BPF free - Keeps drinks cold for 6 hours and hot for 4 hours - Cap Material: ECHO bio-copolyester - Material: Vacuum Insulated Stainless Steel - Gear Range: Minimal