Take a swig in style with these fabulous 12 oz insulated stemless U-shaped wine cups. It is made of high-quality stainless steel. The lid is made of food-grade PP plastic and silicone ring. Even if the cup is turned upside down, it will not leak water. It is safe, hygienic, high temperature resistant, non-slip design at the bottom of the cup. Wonderful for staying hydrated when camping, traveling, working, and staying at home. With customization offered, you can add a brand name, logo, message, and more.