Lazer Helium Helmet White/Red, L Dual density foam for light weight without sacrificing safety; patented Rollsys fit system Carbon reinforced with under-shell for increased durability NOTE: There was a sizing change on this model between 2011 and 2012: A 2011 XXS/SM is a 2012 MD. A 2011 MD/LG is a 2012 LG. A 2011 XL/XXL remains a 2012 XL/XXL. Check list of attributes below for size range in centimeters Lazer has a simple crash replacement program for dealers; contact QBP Customer Service at 1-800-346-0004 for details