I forgot. So, I've been looking for a decent straw type hat for keeping the sun off, and, you know, looking dapper and all. I want to get the size right, so I googled a chart that converted inches to hat size. I have never measured my considerable dome with a tape measure before, so imagine my surprise to find that the number rivals the waistline of a healthy young woman. Who knew? Chock full of knowledge, I think.