Good but used vintage condition. There is some staining on the back right thigh and in the crotch. The back pocket button is missing. These pants came from a large lot of US Army uniforms and while they are not Army issue as far as we know, they appear to have been worn as such.
Please look through photos to get a good idea of over all condition.
Size:
There is no size label, but they fit closest to a size 43x32. This is in the range of an XL or even smaller 2XL.