Innovative seamless (i.e., stitch-less) construction 6-panel cap with proprietary DryNCool® moisture wicking technology. Lightweight and built for athletic performance, Peak features GRS-certified recycled sporty fabric for flexibility, breathability, and all-day comfort. Ideally built for superior workouts, travel, outdoor activities, or everyday wear. Made of 97% GRS-certified recycled polyester and 3% spandex. One size fits all with the premium adjustable back closure.