When I first got commissioned I was able to wear a lot of my Dad's old uniforms, to include his dress greens. I got hemmed up by an NCO in OBC because the material and the cut of the greens was no longer in regs (he was right--but I couldn't tell the difference). I used those same greens at my unit (101st) with no one ever saying anything about them. Just that one eagle-eyed NCO at OBC...