Comments:
I wasn't sure about the sizing -- couldn't find reference to this size scale for youth anywhere online. Decided to trust STP description and order the 42 (13) for my relatively tall (90th percentile) 11 yr old. We were both pleased that the coat and bibs seem to be true to size -- a bit large on him but not too large, ie, would probably fit most 13 yr olds fine.
The quality and styling are very nice. I would recommend this set.