Stainless Steel Travel Stemless Wine Glass. Ideal for hot & cold beverages. A great gift for birthdays, Christmas, family occasions, vacations, beach, pool or travel. Better than plastic cups, plastic bottles, and glass, the double wall insulation and high quality slip-free powder coat does not sweat on the outside which allows you to conveniently keep a good grip on the tumbler while drinking on the go and at the same time keeping your hands dry! Engineered with 18/8 kitchen and food grade stainless steel, our tumblers are durable, corrosion resistant and rust free & the lid is made from shatter resistant plastic! The slim 12 oz tumbler design will fit all car, vehicle, bike, and boat cup holders. EXTREME TEMPERATURE RETENTION - This tumbler's double-wall vacuum technology maximizes temperature retention that traps the cold in your beverages for 24 hrs & the heat for up to 6 hrs! No matter the contents - hot tea, coffee, or an ice-cold drink, the feel on this tumbler remains constant!