theres several types,indoor storage breathable,outdoor storage wind and weather resistant,what type are you looking for?
I bought a cover master for my 06.
It covers the entire bike besides the bottom 6inches of the rear tire.
It's very light,thin and breathable,it's used for indoor storage only,keeps the garage dust off the bike when not riden for days at a time.
I paid $35-$40 for it and it serves it purpouse.