I bought a couple of the NX jumpsuits from Cosplay a few years ago when they still had them premade and all you had to do was pick a size from Small to X Large.
I bought (2).
1 Large & 1 XLarge as they are located in Singapore and I was unsure of the Sizing difference, They tend to run small.
Mine even has the Epaulets from the Mirror/Mirror episode.
Now Cosplay only takes your Measurements and makes them to your specifications.
They offer the Jumpsuit with a thinner Division Stripe if you look at them on Feebay.
I ordered an NX Away Team Jacket from them and it came out OK, With the smaller Division Stripe, except that they did not tell me that the breast zippered pocket was No-Functional, It is just a zipper sown onto the jacket -It zips and unzips but there is no pocket behind it-.
Plus I did not measure my self correctly and now it is for Display only and I can't wear it.
They are not made out of the same material from the show, They are made from a Poly-cotton blend.
Hence the Price.
The shows were made from Denim.
If you look on the 1701st uniform forum there is a whole topic about it.
Or ask Sulla here, he is the man in this dept.