Helmet Size: Small (Adult); Sm Centimeter: 55-56CM=21 1/2 - 22 inches; Hat Size:6 7/8 - 7
Helmet Features: Beautiful glossy UV protective finished; Light weight extremely durable composite shell; Heavily cushioned and very comfortable interior; Removable and washable padding, adjustable circulation vents with flip-up visor; Well vented all purpose product for summer or winter riding 
DOT Safety Standard: Comes with a Helmet Bag New In Box; NOTE: Please MEASURING YOUR HEAD Before Bidding. A small metal tape measure, or a cloth tape may be used to make your initial measurement.The circumference of the head should be measured at a point approximately one inch above the eyebrows in front, and at a point in the back of the head that results in the largest possible measurement.