How should you shirt fit?
The collar should be proportional to the tie you intend to wear and the size of the lapels on your jacket.You should also be able to breathe without feeling strained and fit three fingers under your collar.
Generally, the cuff should end four and half inches from the end of your thumb, cuff lining can add flair and structure to your cuff.
Your sleeves shouldn’t rip when you flex but should be tight enough to look good and loose enough to allow for movement.
For more, see the info-graphic below;
Model in Featured Image: Denola Grey