i have used the Davida jet (open faced )for a few months now and its by far the quitest helmet i have ever used, it is leather lined and i guess the leather takes on the shape of my noggin to act as a gasket to keep the wind noise down.
on the downside... when leather gets wet it takes forever to dry out
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Laromo \ '02 KTM 300 EXC "Jake"
'05 KTM 640 ADV "Fatman"
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