Kids spyder bibs

nwt, never worn. Too small for my son. He wears 10/12 in clothes, so I thought these would be perfect. They fit, but only w a tshirt on. no room to grow. for reference my son is 5'0 82 lbs..he's pretty skinny. I'd say these fit like a kids 10 youth. I did take stitching out of bottom for length.