This is a Discus cap. Although listed in the men's category, I believe it is unisex and can be worn by both men and women. The size is adjustable. 【Size】 57 - 59 【Material】 Body: 100% Polyester Mesh: 100% Polyester ★All Products★ #amechanShoppingAllProducts ★Instant purchase welcome★ You can purchase any item directly without commenting. ★Bulk purchase welcome★ If you apply using the "bulk purchase" function, you can get a discount for the shipping cost, so feel free to apply. You can combine and ship as many items as you like. The more items you buy, the more discount you can get! However, we may decline if the shipping cost increases significantly or the package size exceeds the Mercari shipping regulations. ★Requests & Notices★ To offer products at a low price, we pack them as small as possible. We do not offer individual discounts, reservations, or holds. We will follow all Mercari rules.