It’s an ambiguous area, as where does sleeve start/end? From the little diagram they use for handball, that’s not where a sleeve starts/end, unless it’s some small tight fit.
Just looking at the FIFA actual wording, all moot anyway my point as it says
“the Law 12 definition for handball, whereby the arm ends at the bottom of the armpit, must be used when judging whether a player is in an offside position”
So sleeve is pointless. Might as well have it all as handball, that part of the body the no man’s land of football it seems. Neither handball if it hits (depending on interpretation), but offside.