This is a serious hat, for serious runners. We tested dozens of fabrics for too way many hours of treadmill time. Then we tested it all again outdoors. And again in the dark, after we applied reflective coating to the bill and rear strap. And now, this hat is total runner's perfection. Because we know what it feels like to be on mile 12, and this is the hat you're going to want. 

• 82% nylon / 18% elastane performance stretch blend 
• Reflective coating along bill edge & rear strap
• Moisture wicking performance sweatband