Prepare to spend some coin if youre wanting an authentic Jordan jersey.
Hard to know what to look for in fakes unless you know how to spot them (they are getting good at them these days)
But if you need advice on a listing, just pm the link and ill give you my opinion on it.
Just a couple of things to watch out for:
-Avoid any with the 'NBA Finals' logo... They only ever made them for Jordan. An authentic one will set you back a few thousand
-Avoid any with adidas insignia. Only Sand Knit, Champion, Nike and Mitchell and Ness made legit MJ jerseys
-Dont bother with ones with low but it now prices. if its too good to be true...
Good Luck with the search