Vintage H.I.S jeans

adorable vintage jeans with many accents. see rear pocket style, rear waist design, built in "belt" pulls on front, detailed snaps in front, wide leg small stain in last pic, I haven't tried stain remover on it. no size tag, see measurements. I'm a 28 in Levi's, 4 in Express jeans and these are too tight to button for me. would probably fit a size 2, regular.