you should definitely order a size up. Also the neck is very tight. The imprint feels like a kind of rubber, but the first wash has survived without damage. Since you should turn the shirt to the laundry on left, one sees of course well the seams. There you will encounter some long pull threads of about 5 -6 cm long. Did they cut and is good. Whether at a 20 Shirt, the processing must be so but everyone should decide for himself. The fabric is fully in order, and feels very soft. Did the shirt now bequeathed to my son. He wears normal L and it suits him perfectly. So would be still one.