It's true what has been said about the stupidly oversized sleeves of the Rams Eric Dickerson jersey. Perhaps it's not ideal to get one if anyone is interested because it's a losing situation overall.
I got the right size for what I wear with Mitchell & Ness authentic NFL jerseys but the sleeves are so big, they actually go past my elbows! And they're baggy like some damn bell bottom sleeves.
So if you get one size smaller in order to get the sleeves smaller, then you'll be wearing something tight as a bad trade-off. You basically won't get the right fit either way with this jersey.
I have no idea why M & N cut it awkwardly like this. Perhaps they tried to replicate how Dickerson had his sleeves tailored to his liking and to fit his shoulder pads. That's so asinine on their part if that was their reason because we're consumers wearing jerseys as street clothes, not to step on a field with equipment underneath.
Perhaps these pictures can show that the sleeves are cut way too big. Hopefully this will get purged for something useful.