The style is a stretch fit, semi-structured hat that keeps the sun's relentless rays from ruining your day. The front Velcro morale patch panel gives the hat a feel that's distinctly Oakley. And because it's Velcro, you can substitute your own patch. The low-profile silhouette offers a great, snug fit that doesn't irritate. 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.