The Stretch Fit Performance Cap features a moisture-wicking O Hydrolix headband with a front hook-and-loop morale patch featuring subdued ellipse embroidery. O-Hydrolix maximizes comfort by transporting perspiration away from skin and carrying it to the outer surface where it can quickly evaporate. This wicking ability helps protect the wearer from overheating in hot climates and chilling in cold climates.Cap Size Small/Medium: 6-7/8" - 7-1/8"Large/XL: 7-3/8" - 7-5/8" FeaturesO-Hydrolix headbandStretch fit and unstructured designFront hook-and-loop morale patch panel with subdued ellipse embroideryLow profile silhouette