Fman and I have similarly sized heads. [insert joke here] It used to be that the official caps were wool, so that if you bought one that started out a little big, it would shrink to fit as you wore it. Now, the caps are practically worthless to me. I read somewhere that there is some stitching that will pop if you pull the brim (hard) away from the back of the cap for sizes that are too small. This would give it a little more room, but I've never tried it for fear of ruining the cap. I recently bought the standard blue Mets fitted cap in 7 3/8" which is roomy for my head, but I symmetrically tucked a bit of folded fabric in the back sweat lining of the cap to make it more snug. It still doesn't fit like the ones from 10 or 15 years ago, though.