This hat is just what I wanted. It is a tad larger than I expected for a "Large" but not enough to matter and it might even shrink a little once I wash it. I am surprised that it doesn't say "washable" in the paperwork. Some other reviewer says that it is so I'll take their word for it. I am amazed at how cool it feels. I thought that once I went to a solid cover on the top instead of the mesh I've always worn that I would suffer a big heat penalty. Not so. This hat feels great.