Men's Shirts

The collar is the one point on a dress shirt that sizing around does not fix — half an inch too tight is uncomfortable in a way nothing else about the fit compensates for, and half an inch too loose reads as a borrowed shirt however well the body fits. Fit names layered on top of that (classic, regular, slim, tailored) change the chest and waist ease by a couple of inches at the identical collar size, so the same nominal size in two fit names from one brand is genuinely two different garments.

Fabric decides what happens after the first wash. Oxford cloth is heavier and holds its structure but, unless the product page says pre-shrunk, tends to lose length in the body and sleeve over the first few washes; a poplin or a cotton-blend with a small amount of elastane moves less. If a retailer publishes garment measurements rather than only size labels, the sleeve and body length are the two worth reading before ordering.