Nike Sphere Dry Technology Ensures Maximum Moisture Control And Quick-Drying Performance. 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% 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).