The 2018 Kask Protone Protect Your Style Limited Edition is a new release of the company's high-end hybrid aero/road helmet, part of a collaboration between Kask and designer Iris Slappendel, launching Kask's new Koo apparel brand with a selection of women's-specific kit, including cap, socks, and jersey. This edition incorporates the bold colors and sharp lines into a sweet overall design that works well with the helmet's unusual lines.
The Protone is a surprisingly effective attempt to improve aerodynamics without hampering ventilation. Its smooth-sloping rear offers measurable drag reduction, while the massive front vents provide effective cooling on all but the hottest rides. Light in weight, equipped with the finely tuneable Octofit, and including a soft leather chin strap, this is a very comfortable all-day helmet.
