The fit of these jerseys is designed for on bike feel with what would be called a pro fit. Wearing in the standing position, may feel like it is too small or too short in the body, but that is because you are in a forward position when on the bike. To minimize bunching etc. 

The garments fit tighter and the fabric might feel firmer, and the sizing suggested will utilize a higher stretch percentage. Thus for the more regular fit towards the classico, then we suggest sizing up.