Indeed, those are some of my favorite spacesuits ever.
“Making Of ALIEN: Planetoid, Derelict, Space Jockey, and Space Suits”:
I don’t recall if it’s mentioned in this video, or I read it elsewhere: several of the space suit scenes featured Ridley Scott’s children in child-sized space suits, to make the surrounding set (Nostromo, alien pilot) appear proportionately larger.
