I can't figure it out. There are so many.

It has a Makarov holster built into it.

There are also a matching pair of trousers.

Thank you all in advance!

It looks like VSR camouflage. Camopedia lists it as post USSR though developed in the 1980s.

Thank you.

I will take a look at Camopedia.

Welcome, I'd only seen the green background type before, but going by the shapes of the green and brown it seems to be VSR pattern. I had not realised there were quite so many colour variations.

This is the writing inside.

Looks like 1997.

FYI Size 50 4 would be a medium 40" chest, tall 5'9"

That looks like a VSR Reed Pattern camo uniform for MVD troops (although regular Russian Army units were spotted wearing them too). Developed 1995-96. Used extensively by MVD troops during the Chechen Wars. There's also an urban camo version of this which is dark grey/light grey/black in colour.

 

The buttons should be marked with "MVD" in Cyrillic.

Thank you very much motorhate.