A set of 8 white baseball or softball hats; 4 size lg/xlg and 4 s/med. "The Original Flex Fit" hats are made of 98% cotton and 2% P.U. Spandex. The large runs approx. 23" and the small approx. 22" without stretching. There is no adjustment strap on the back of the hats, the elastic stretches to a snug fit. These hats are new, never worn (they are inventory from a screen printing business that I had)