Lostforawhile
Member
It almost looks like that ventilation hose ,they use for when people are working in confined spaces . There was a lot of surplus military and aerospace stuff around back then , so it could be something like that .My fiirst thought is it could be a piece used in a different show but I think it is far more likely that the entire suit was built for the show. I have seen comments from some of the shows prop people having built parts of the costumes but I don't have any links to share. You could try doing a search for 'Space:1999 costumes' here on this site.