Review on Favia 12Oz Stainless Steel Vacuum Insulated Wine Tumbler With Leak-Proof Lid – Perfect For Hot Or Cold Drinks – Ideal Gift For Women, Travel Or Outdoor Use – Dishwasher Safe - Cotton Candy Color by Robert Jackson

This is a nice wine tumbler. However, for some reason I pictured the exterior to be less slick. Not a complete deal breaker, but it's important to know if you have a couple of tumbler's worth of drink in you! I also think this could be improved by adding a gripper bottom. It hasn't tumbled yet but that would help the stability. Hand wash, just like all other name brands of this product. Keeps cool for at least several hours. We haven't done a real test on it but can't picture a time we'd need it to remain cool for more than a couple of hours at it's size.