01 — What you know
From
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Your shirts size in Levi's
Formal shirts are sized by collar; the chest sets which collar fits.
02 — Your Marks & Spencer size
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Pick a size you wear in another brand, or enter your chest. Your Marks & Spencer size appears here.
03 — The chart
Marks & Spencer shirts
Marks & Spencer's shirtschart isn't on file yet — sizes above are estimated from other brands.