“I haven't had a chance to test these yet but I like the design and the way the drinking hole closes. The best way to describe it is like a belly button. When it's open it's an "outtie" and when it's closed it's an "innie." These are a gift to go with some silipints and I expect they will serve not only to keep liquids in while driving or walking, but will add a little stability at the top of the pint so that it doesn't flex quite so much. It makes the pint much more utilitarian ... goes from day (capped for coffee) to night (uncapped for beer, drinks) with ease.”
