For 3 ounces this is an impressive visored low profile hat for keeping the sun off your eyes and the wind off your head on winter climbs. Laser-cut perforations aid in breathability while a lightweight tricot lining adds a dash of warmth while its quick dry characteristic wicks sweat to keep you comfortable. 100% recycled nylon with a DWR finish on the outside for mist protection, a soft foam-core brim with a dark underbill to reduce glare and keep it packable (and collapsible if you take a tumble) this is sized and designed to fit under a helmet when you hit the summit and turn to take the run down. Designed for skin tracks this is a great hack for winter biking, fits under the helmet for wickable wind protection and throws shade all over a beanie liner!