DOT Approved; M (51-52 CM,20.1/20.5 Inch); Light weight durable aerodynamic thermoplastic alloy shell; Heavily cushioned and comfortable interior; Beautiful glossy UV protective finish; Removable and washable padding; Helmet Size Chart
S 49-50 CM 19.3/19.7 Inch
M 51-52 CM 20.1/20.5 Inch
L 53-54 CM 20.9/21.3 Inch
Helmet Size Tips
(1)Wrap a measuring tape around your head about a half-inch above eyebrows
(2)Take measurement two to three times to pick the largest one.
S 49-50 CM 19.3/19.7 Inch
M 51-52 CM 20.1/20.5 Inch
L 53-54 CM 20.9/21.3 Inch
Helmet Size Tips
(1)Wrap a measuring tape around your head about a half-inch above eyebrows
(2)Take measurement two to three times to pick the largest one.