Perfect for staying hydrated on the boat, our World Wide Sportsman 20-oz. Tumbler is ready for ice-cold or piping-hot drinks. The double-wall vacuum insulation ensures your cold drinks stay cold and your hot drinks stay hot, plus it delivers sweatproof performance so you don't get wet hands when you grab a drink. The rustproof, durable 18/8 stainless steel construction stands up to adventures, and the slide-closure on the lid makes drinking easy and mess-free. The BPA-free insulated tumbler is dishwasher safe for easy cleanup. Double-wall vacuum insulation Keeps your drink they temperature you want Sweatproof, rustproof performance 18/8 stainless steel construction Lid boasts a slide closure Dishwasher safe BPA-free