What is the difference between the Vapor and Regular jersey?

 

Vapor/Player Grade jerseys (also known as stadium grade jerseys)

These jerseys are identical to the exact jerseys players wear on the pitch. It is made with technologically enhanced jersey material for sweat control while players run around the pitch. It is also clingy to the body.   

Regular/Fan Grade jerseys (also known as spectator grade jerseys)

These are made with jersey material for football fans as the name implies.

This image below highlights the 3 main differences between these jerseys: