The Anon Rodan MIPS is a great helmet for ladies looking for a simple look and a lightweight shell with added protection. The Rodan MIPS has an inner shell that can rotate upon impact to absorb some impact rather than transfer it on to your head. The In-Mold Construction fuses with a Polycarbonate shell with an EPS liner has a sleek look and low-profile fit. Anon's Passive Ventilation System keeps a steady flow of cool air moving through your hair as you cruise down the mountain to prevent you from overheating and staying comfortable. The Rodan has the Boa 360 Fit System that allows you micro adjustments around the entirety of your head that delivers a perfect fit by turning the dial. The Fidlock Magnetic Chin Strap is effortless to close, even when you have gloves or mittens on. Long Hair Fleece on the Ear Pads and Liner adds extra warmth and keeps you cozy on those cold days. MIPS (Multi-Directional Impact Protection System, In-Mold Construction, Passive Ventilation System, Boa 360 Fit System, Certifications: ASTM 2040/CE 1077, Warranty: One Year, Race: No, Category: Half Shell, Audio: Audio Compatible, Brim/Visor: No, Ventilation: Fixed, Adjustability: Full, Year Round Capable: No, Shell Construction: In-Mold, Model Year: 2021, Product ID: 616082, Model Number: 22212100300 S, GTIN: 0193177044653