A bit too modern and 'styled' don't you think for the 3W?
Nope. They look pretty retro to me,but with a modern twist. Much like the new threewheeler.
Cromwell also makes some more retro-stuff, but they're not hypo-allergenic. They also make those momo-helmets (same company)
That top part looking all silvery is stainless steel. It's not painted carbon fibre or glass fibre.
One could use it without the vizor for something more retro, but really, everything would be a compromise except those half helmets with leather sides - you know, that half an eggshell glued onto a leather helmet.
People racing in the old ones use full-face helmets, but I think a "scooter helmet" as the cromwell is a good compromise.
Btw, Newmax.it are the company producing the helmets:
http://www.newmax.itPerhaps their Borsalini brand would be more fitting:
http://newmax.it/English/Borsalino/index-borsa.htmLS-brand (look at the black one):
http://newmax.it/English/LS/index-LS.htmCromwell-brand - different series:
http://newmax.it/English/Cromwell/index-cromwell.htm