Here is a breakdown of the different parts of a shirt that makes it what it is.
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Classic Button Up Shirt Sew-Along - Part 1 - WeAllSew
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The easy guide to parts of a shirt for men - Oliver Wicks
Men's Shirt Pattern and Tutorial - Melly Sews
Parts of a Shirt - The fundamentals of Button up Dress Shirts
Tahari Men's Luxe Woven Dress Shirt
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Tahari Men's Luxe Woven Dress Shirt