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      02-18-2013, 12:22 PM   #3
M3 Esq
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Drives: M3, 335i, X5
Join Date: Aug 2007
Location: CT

iTrader: (6)

I believe Simpson has a sizing chart on their website. I would start there. Also, I was told the helmet should fit snug enough so when you grab the face guard and yank a bit it shouldn't move around too much.