I think they're called 'cardigans'?
Cashmere is lovely... I have a grey Armani cashmere scarf which is a real comfort in the cold.
A tip... rub your fave aftershave on it... (scarf) not too liberally...
No, they are pullovers that look a little like v-necks, but have a few buttons at the v-shaped neck. Their packaging describes them as 'pullovers' - and you pull them on over your head.
Personally, I love cashmere - and almost all of my pullovers are made from it.