I am in the market for a new helmet. I've got an ancient FFM full face, noisy as all hell, plus when it rains there is equal amounts of water on each side of the visor

I want a fixed full face job ( not one of those ones where the chin bar and visor swing up ) which is nice and quiet. I wear earplugs with my current helmet if going more than 15 mins, but that gets to be a pain in the arse, plus its no good for trying to talk to people on group rides at regroups, so that only leaves lunchtime, and you can't get around everybody in time

. I want a helmet that is QUIET!!
I read somewhere about double D's and clip straps - I've got DDs and want to stick with them. Can you take your pick, or does each manufacturer only offer one or the other?
Talking with a few people on the weekend ride, Nitro (is that the make or model?) helmet is said to be reasonably quiet ( and well priced ~$250? ).
I assume one can buy tinted/mirror/irridium visors for most or all current market helmets these days? Do they come standard with a clear visor?
Cheers
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