Originally Posted by
zacster
As I've aged, all of my jerseys have "shrunk",
I don't know why you put
shrunk in quotation marks, but I will note that cycling jerseys are made of polyester, which does not shrink.
Since I've not had your problem, I will guess that either you are buying the wrong jerseys (for your body size and type) or you prefer them to hang down much lower than is typical. When you get off the saddle to climb or sprint, does the back hem of your jersey get caught on your saddle? Do you want it to?