Protection in the lightest of packages. New laser cut ventilation technology allows the On running hat to provide high-performance protection, while at the same time being feather-light and fast-drying. Basically - whatever weather you run in, you’re covered. Made with tear proof woven fabrics, ultra-soft sweatbands, clip-pull sizing and finished with hand-detailing, the Lightweight Cap is in a field of its own. For protection, for ventilation, for feel, this running hat is without contender – but with everything your run could need.