I was looking through Prometheus crew member photos just for fun of identifying their costumes and I thought that it would be nice to put my girlfriend into Elizabeth Shaw character. I made some quick research and I'd like to share the result with you. I will be referring to this photo:
The overalls Shaw is wearing is the U.S. AIR FORCE ISSUE NOMEX CWU-27/P FLIGHT SUIT. The flight suit comes in men's and women's variant. The overalls is very easy to buy and find, it's also rather cheap so it should be no problem with obtaining it.
Second costume part from the picture is the belt. It looks like a bit modified Blackhawk CQB/Riggers belt - BLACKHAWK! CQB / Rigger's Belt - BLACKHAWK!. Similarities are obvious, but maybe the belt used in movie is just something different. Anyway, my first pick is the Blackhawk belt.
I'll be doing more research in some time and I'll be posting the results here. It would be very nice if some of you shared your knowledge in that topic.
Stay in touch