The Most Ventilated Road Helmet Ever Made. How do you make a helmet cooler than a bare head? You figure out a way to make bigger vents than you ever thought possible. The Ionos features our proprietary In-Mold Composite Sub-frame which supports those huge vents while enhancing the helmets ability to manage impact energy in a crash. Plush X-Static padding keeps the helmet feeling fresh & the sure feel of Roc Loc®5 enhances fit & comfort for a higher level of cool comfort & performance you can feel every time you ride. CONSTRUCTION: In-Mold polycarbonate shell with EPS liner In-Mold Composite Sub-Frame reinforcement FIT SYSTEM: Roc Loc® 5 VENTILATION:21 Wind Tunnel vents with internal channeling
Sizes:S 51
- 55 cm M 55
- 59 cm L 59
- 63 cm