/cgl/ - Cosplay & EGL

heya cgl, my friend just voiced her wish to do red catsuit britney for our year-end party. She asked me (the resident cosplayer) for advice but I've never done anything like this.

What I'm asking for is mainly tips on trustable stores, what to look for and what to expect when it comes to these types of suits. I'm not sure what it is but I'd guess it is either vinyl or latex, so advice on wearing that would also be appreciated. She has very little sewing experience but with her determination I am sure she'd manage only she got good advice, though having to sew things or take them in would preferrably be avoided.