A light, cool, cap for longer, warmer rides. The Peloton Cap might be the most versatile accessory a rider can have on a warm day. It provides a bit of shade from the sun, a layer of insulation when it’s cool or windy, and it wicks sweat when the heat rises, too. Designed to be worn under a helmet, it is thin enough to fit without bunching and light enough to practically disappear when you put it on.Key Features: Anti-microbial jersey fabric, Smart seams help alleviate pressure points when worn under a helmet, Reflective brim detail, Elastic rear panels, Fabric & Construction: Fabric: 50% nanobon / 50% polyester.