Upfront: XL is what you want if your head is size 7 5/8 to 7 3/4 (maybe slightly larger?) in fitted caps. Anyway, you cats with big heads know what I'm saying. Wear it with your light raincoat and amaze your friends with your sartorial savvy. Equal parts hipster, nerd, utilitarian and Japanese tourist. Wear it to the bar, to the gallery, to work, for a quick walk, and most definitely wear it hiking when your fleecy friends are wearing ridiculous high-tech fast-wicking ripstop boonie hats. This is none of that. It doesn't even have a strap. That is to say: it is civilized without being the least bit stuffy. And always, always remove your hat in the presence of a woman, and hesitate to put it back on--nothing looks more ridiculous than a hat.