Indigo Rein• chambray shorts

Chambray paper bag shorts by indigo rein. They are a light to medium chambray denim and they tie at the wais and have pockets on both sides. Size on the tag inside says 9/28. I thought a 28 was normally a size 6 but maybe it’s just their sizing. I am a size 6 to 7 and they fit me fine. They are not loose so I would say they fit like a seven or so.