The Atomic Revent+ LF is a fantastic helmet for ladies looking for a very comfortable and accommodating fit. Atomic's Live Fit 360 Degree Fit System has a dial for adjustability and padding that conforms to your head as soon as you put it on. The Holo Core Construction has an egg carton construction that is designed to crumple upon impact to absorb 30% more impact. Holo Core also has extra ventilation holes that allow more cool air to enter the helmet and reduces the total weight. Active Air Con Venting allows you to open up and close the vents to regulate your temperature. Merino 3M X-Static Lining adds extra insulation and helps combat bacteria inside the helmet. If you want a light weight helmet that conforms to your head shape in a matter of minutes, the Atomic Revent+ LF is the perfect option for you. Holo Core, Live Fit 360 Fit System, In-Mold Shell, Certifications: ASTM F 2040/CE EN 1077:2007 Class B, Warranty: One Year, Race: No, Category: Half Shell, Audio: Audio Compatible, Brim/Visor: No, Ventilation: Adjustable, Adjustability: Full, Year Round Capable: No, Shell Construction: In-Mold, Model Year: 2022, Product ID: 609458, Model Number: AN5005910S, GTIN: 0887445220060