RAPID DOMINANCE French Round BDU Cap Military Fatique Cap with Zipper (BLACK) 100% Cotton 100% Washed cotton / Vintage Military Wash S (6 7/8 - 7) M (7 1/8 - 7 1/4) L (7 3/8 - 7 1/2) XL (7 5/8 - 7 3/4)