Got the helmet in the mail today, I'm 7 1/8 hat size or 22 3/4 inches approximate. I got the medium size which is true to size. This helmet reminds me of a older style giro helmet, might have been called the hammer head? this helmet doesn't appear bulky and has adjustable fit with removable inserts. I appreciate the rear elastic support most helping keep the helmet on even when in a accident. I am also pleased to write I was able to adjust the fit in just a few minuets and with a decent semi snug fit. but not resticting. After a long ride any annoyance will become greater. Visor is removable. the color is just as picture, matte gray, with rear reflectors looking nice, not cheesy. if you prefer a not so bulky vintage looking, light weight good looking helmet. This might be the one for you.