This helmet has been in no falls. Very clean! Size M 6 7/8”-7 1/8” Head circumference 55-57cm Inside the lightweight, high-density ABS shell, the MIPS low-friction layer is proven to reduce rotational motion impact energy. The MIPS low friction liner hangs from the helmet shell with rubber elastomers, just like a hammock, and moves independently from the helmet. It is proven to reduce rotational motion by absorbing and redirecting rotational energies and forces that would otherwise be transferred to the brain from angled impact. The EPS foam liner reduces impact energy. The Windsor with MIPS is a low-profile design offering full coverage. The Tipperary Retention System™works in concert with MIPS. It is seamlessly and discreetly integrated into the helmet, providing a snug, customized, comfortable fit that can be adjusted to allow you to wear your hair inside or out of the helmet. It also accommodates various head shapes. Six strategically located cooling vents channel cooling airflow from front to back while maintaining a show-ring look. The adjustable 5-point PU leather harness with patented Duratex buckle has a removable, washable chin pad for comfort. The Windsor also comes with a removable, washable and replaceable comfort liner so you can always have a fresh helmet.