The StormChaser offers the right performance for any race: road, cross, and even criterium. It is light, comfortable, and perfectly ventilated. ActiCage, a structural reinforcement built into the EPS, offers superb protection. - In-Mold: Lightweight, durable helmet with a long-lasting combination of EPS core and Polycarbonate shell - Ponytail compatibility: Perfect fit for people with long hair - Half-ring: Adjustable ring connected to adjustment system enclosing half of the head - Lower edge protection: Provides the helmet with additional protection from external damage - Excellent ventilation with 7 air inlets and 16 air outlets - Forced Air Cooling: Innovative ventilation system using intelligently arranged air channels in the EPS - High visibility: High visibility due to reflectors - Zoom Ace: Finely adjustable fit system with a handy adjustment wheel - AirPort: Aerodynamic glasses holder with strap guide Sizing: - Small: 51 - 55cm - Medium: 52 - 58cm - Large: 59 - 61cm