I stumbled upon these helmets from Les Ateliers Ruby. I think their retro and simple designer is to-die-for. If I ride a (motor)bike, I will be seriously considering these – but at 507 Euros on the Colette eshop, it will take quite a bit of consideration.
And if you are thinking they are some kind of toy helmets, you are wrong. All Ruby helmets are made using carbon fibre (that really tough material used in the aerospace industry).