The Astroman Sun Hoodie is the best-selling lightweight, stretchy, and durable fabric packed with UPF sun protection. Named after the legendary route in Yosemite Valley, the Astroman was built for exposed and rugged climbs, but works equally as well for hiking, paddling, backpacking, or any other activity when you're headed out in the blazing sun. The hoodie version might be our favorite for protecting ears and back of neck, while controlling windblown hair and of course - fitting easily underneath a helmet.