The Yeti Rambler 10 oz Wine Tumbler is made of durable, stainless steel so broken glass is a thing of the past. Its double vacuum insulation keeps your wine at the perfect temperature while a handy MagSlider Lid keeps every drop inside. Now you can confidently enjoy the fruits of your favorite vineyard outdoors, without a care in the world. Double-Wall Vacuum Insulation - Keeps hot drinks hot and cold drinks cold until the last sip. 18/8 Stainless Steel - Kitchen-grade stainless steel, puncture and rust resistant. | Dishwasher Safe - No need to hand wash! | Dimensions - 4. 5 x 3. 5 in | Empty Weight - 8. 1 oz.