Giro: FIT FOR FUN & FEATURE-PACKED The Vasona helmet combines sleek, airy design with smart features and lightweight construction to match your style on the road or trail.Made in a comfortable, Universal Fit women's size with our adjustable Roc Loc Sport fit system, the Vasona's fit can be custom-tuned with a simple turn of the dial to make fitting fast and hassle-free.Also with a range of colors to suit almost any style, you can choose exactly how your on-bike style comes together.  SPECS- Women’s Series™- Compact shape- Reflective accents- Quick-dry padding- Quick Link removable visorCONSTRUCTION- Full-wrap In-Mold polycarbonate shell with EPS linerFIT SYSTEM- Roc Loc® Sport MipsVENTILATION- 22 VentsUNIVERSAL FIT™SIZE- UW 19.75”–22.5” / 50–57cmCERTIFICATION- Complies with the US CPSC Safety Standard for Bicycle Helmet for Persons Age 5 and Older