Lebron 10 Cork Sizing question

[chrissale49]

So while I was at college my foot decided to magically grow a half size.  I have to get rid of pretty much my whole collection but I want to add some new shoes.  Since my foot has grown, I wear 8.5 in flyknit racers, ultra boost, dunks and AM90's. What size should I get in the lebron 10 cork?