I think that's the best type you could get. It really does work, makes it very comfortable to ride. You can still hear the bike, ambient sounds and so forth. You'd actually be surprised how loud things get inside the helmet, once you're used to these ear plugs, and then don't use them for a bit....Sauron mentioned ear protection before - what options are there?
I've just found this which would be R410 to get one pair which is a bit out of whack. How long would it last?
http://bikegear.co.za/nonoise-motorcycle-specific-hearing-protectors/

