FEATURES: Futuristic look with modern features Pull shield out over helmet - helpful for those who wear glasses VIVID lens integrates seamlessly with helmet with Stack Vent anti-fog technology VIVID lens with ZEISS(R) Optics blocks UV light and enhances vision by manipulating blue light Spherical Technology Ball-and-Socket design rotates outer liner to redirect impact Features MIPS(R) (Multi-Directional Impact Protection System) Technology for exceptional protection MIPS(R) Technology includes an interior EPS foam liner, a Low Friction liner and an elastomeric attachment system that sits between In Form(TM) 2 Fit System creates a low-profile fit and stability system with 6cm of adjustment Thermostat Control Adjustable Venting for optimal, custom airflow SIZE: S: 52 - 55.5 cm. M: 55.5 - 59 cm. L: 59 - 62.5 cm. XL: 62.5 - 65 cm.