POC - Fornix, Lightweight Well-Ventilated Helmet ADJUSTMENT: The Fornix is generously ventilated and the size adjustment system makes it possible to customize the fit of the helmet to make sure it stays safe and in place. LINER: Has an in-mold EPS (Expanded Polystyrene) liner, where the strength lies in its versatility and protection against single impact accidents. PROTECTON: Aramid bridge reinforcements for structural stability and dispersion of impact energy. VENTILATION: Integrated venting allows air from your goggles to move freely eliminating potential fog. COLOR / SIZE: The Fornix comes in 11 different colors and 3 sizes (XS-S, M-L, and XL-XXL).