The light, yet tough In-Mold shell helps to resist dents and dings from life on the streets, and the Roc Loc City MIPS fit system makes fit/feel adjustment almost effortless. Inside the helmet, MIPS® technology can help to reduce rotational forces to provide more protection in certain impacts. Thoughtful details include reflective accents, a lock port for securing the helmet with your bike or a bag when you're on the move, and a removable cycling cap-style visor that accents your style without compromising ventilation. Ventilation: Wind Tunnel Vents with Internal Channeling. Vents: 12. Certification: CPSC Bicycle. Construction: In Mold Construction. Fit System: ROC LOC City. MIPS (Multi-Directional Impact Protection System).