What Rob said. My full face helmet behind a nose high windscreen still offers a lot of wind noise.
Since hearing loss is irreversible, and Tinnitus is a malady best relieved by an act of immolation, I highly recommend these:
http://www.etymotic.com/ephp/er20.aspxI'm not a fan of the highly occlusive industrial plugs, as they remove almost all the engine sounds, and give you that heartbeat effect. The Etymotics only cut down roughly half of the noise, and still allow one to hear the bike and loud conversation. A fitted string is available too, allowing one to stow them on a mirror stem. They are easily washed, and seem to be waterproof to me. Best $12 I've spent in a looong time.
