What size clothes should I wear for a size 38 shirt, size 46 or 44?
When you say size 38, you mean the neckline size. If you wear a suit, you should look at your height and shoulder width. Judging from the size of your shirt, you are very thin. If the shoulders are wider, you can choose 46. If you are thin, you can choose 44. Of course, if you want to choose a suit that fits you better, I suggest you customize it. It fits well and has quality.