Nike Dri-FIT Perforated Performance Cap Maximum breathability is achieved with Dri-FIT moisture management technology and perforated mid and back panels. A contrast underbill reduces sun glare. This cap has an unstructured, low-profile design with a hook and loop closure. The contrast Swoosh logo is embroidered on the bill and center back. Made of 100% Dri-FIT polyester. Please note: Although this cap is noted as M/L on the label and on the ordering grid, it is only offered in one size. It is One Size Fits All (OSFA).