Time flies when you always look fine, so don’t waste a single moment without keeping up that classic style in the New Era Metal Square O Flex cap by Oakley. It features a solid-colored construction and a small Oakley logo on the left side of the crown. S/M fits 6 7/8 - 7 1/4; M/L fits 7 1/8 - 7 1/2; L/XL fits 7 3/8 - 7 3/4. Sizes are approximate.