The Toadfish Non-Tipping 20oz Tumbler is made from high-grade stainless steel and is double-wall vacuum insulated to keep your drink icy cold or hot to the last sip. Featuring our SmartGrip suction technology, this tumbler will keep your drink upright and mess-free. Every tumbler comes with our shatterproof lid keeping you on the go without worrying about spilling your drink.  SMARTGRIP TECHNOLOGY - Patented SmartGrip technology makes it hard to tip but easy to lift. •DOUBLE-WALL VACUUM INSULATION - Keeps your drinks cold until the last sip •STAINLESS STEEL - Made with high-grade stainless steel, making them puncture & rust-resistant. •SHATTERPROOF LID - Durable lid with an easy-slide tab will keep your drink safe and easy to sip.  Hard to tip, easy to lift. To use simply place the Tumbler on any smooth surface and it will keep your drink in place (securely up-right). To remove, lift directly up. Sun In Comfort Inc. offers products for the Outdoor Enthusiasts.