Run light and stay cool with this ultralight running cap, weighing only 46g (1.6 oz). Made from breathable micro-porous fabric with mesh panels, it offers excellent ventilation, rapid sweat evaporation, and protection against trail brush abrasion. A moisture-wicking sweatband keeps sweat away from your eyes and face, while the curved brim provides sun protection without blocking your vision. The NIFCO quick-adjust buckle offers one-handed, non-slip fit customization for various head sizes (compatible with different head circumferences). Foldable and packable, it stores compactly for travel or easy stashing in a running vest. Reflective silver logos on the front and back enhance visibility for low-light safety. Perfect for trail running, marathons, hiking, or everyday outdoor wear.