According to previously 10-15 washes incl. Dryer transitions I could see no distortion. I wear almost all the outer garments in size M. The shirts size M lie with me to the upper body comfortable at, not too tight. The shirts are very long and can therefore easily be fixed in the trousers / pants and do not slip out from under a shirt.
The shirts I find it very comfortable to wear. Enzig the V-neck is not very deep, so that you can see it with an open top shirt button. With tie it is however perfectly.