Maybe!! I've never handled a 38. Pit to pit is a about 20.75 so I though tht put it on the 40 range
For example, the Aero Ridley (an extremely slim-straight DR like this) measures 21.75” pit to pit in a size 38, and that’s with a thin fabric lining instead of a quilted lining.
110cm on the chest is not slim, and definitely not 38.
This is one of the reasons Aero's jackets look very baggy from the back.
Wouldn't want to wear a sack for a crosszip. I think to call this jacket slim 40 is fairly reasonable. I find RMC jackets fitting me pretty well one size up. The RMC's cut is pretty much perfect for slim guys.
You have no idea what you're talking about. The Ridley is on the pattern of the Board Racer. The pattern has a bit of additional pit-to-pit space, and then immediately tapers to the hem width, producing a slim-straight cut that's pretty much comparable to the J-24's. It's not a V-shaped jacket.
If you consider it 'baggy' you must have a baggy of artisanal crack somewhere.
I assume you realize that RMC doesn't have a single cut, and that their sizing has changed a lot over the years, in various directions.
Doesn't matter. If you think 110cm is slim for a 38 chest, what is your "regular"? 2 meters? 110cm is more than 7cm on both sides.
Japanese-era RMC cuts were always slim like this except the last generation. Might not suit everybody, that is ok. One can always buy a sack of Aero to compensate or lose weight.
Either way no need to act like Real McCoys owes every person a fit.