In reply to marky:
About 5 years ago I replaced an old elios with a vector and loved it, fantastic alround helmet.
A couple weeks ago I replaced that with the new sirocco and it is so light in comparison. The magnetic chin strap is a great feature as well.
It feels better ventilated and in white is cooler in the sun I think. Great lid.
Haven't had it long enough to comment on durability but always heard good things about the previous version.