Your go-to, go-anywhere tumbler for all your beverage needs; Features Thermo 3D double-wall vacuum insulation and a press-fit slide lid to keep your drink hot or cold for hours on end. Each cup is made with medical-grade stainless steel and a durable Hardshell powder coat finish; Choose from a variety of colors and sizes to match your style and thirst. Made to fit perfectly in your hand, your cup holders and your life; Easy-to-clean, minimal design that doesn’t sweat, leak or spill.