Copa 9 oz, double-wall, 18/8 stainless steel, copper colored stemless wine mug w/vacuum insulation. This multi-purpose, stainless steel tumbler looks like a stemless wine glass, but it's great for drinking so much more! Double-wall, vacuum insulation keeps the exterior from getting hot or sweating when it's holding beverages of any temperature. The clear push-seal lid lets you see inside the tumbler when you're not sure how much of your drink is left! It can hold 9 oz. of your favorite beverage, so you can sip it in style!