This is the same fitted cap worn by NFL players on the sidelines during regular season and postseason games. The official NFL On-Field Cap is infused with NE TECH properties that will keep you comfortable well into the off-season. DRYERA™ is a specially treated fabric that repels water whenever inclement weather sneaks up. Additionally, the collection has COOLERA™, a moisture management system that wicks away sweat and disperses it quickly. 100% Polyester. Imported.