Looking to make the switch to 5.10 or change to a new 5.10 shoe??? As we all know or will soon realize that knowing your correct shoe size for a climbing shoe is nearly impossible. Luckily, I am here to help in that area. I will give you a list of all the shoes along with their sizes that I have worn. Hopefully you have worn at least one of the shoes mentioned and then can there for adjust appropriately to the correct size within the desired shoe.
Five Ten Teams = 12
Five Ten Dragon = 12
Five Ten Hornet = 12
Five Ten Quantum = 12
Five Ten Jet 7 = 11
Five Ten Blackwings = I believe fit same as Jet 7
Five Ten Descent = 11 (going off memory will check when home)
All Five Ten Free Riders = 11
Five Ten Chase Series = 11 (going off memory will check when home)
Evolve Defy = 11
Evolve Pontas = 11
Las Sportiva Solutions = 42.5
Hope this helps!!!!