I bought dress shirts by chest size for years, the same way I’d buy a t-shirt. Grab a medium, move on. Every single one fit slightly wrong somewhere, collar too loose, shoulders too far down my arm and I never once connected it to the size label. It wasn’t until I measured my neck with a tape measure, out of pure frustration more than anything, that shirts started fitting right “Dress Shirt Fit for Men: I Was Buying the Wrong Size for Years”