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Creating your first shirt with our AI : chest measurement

You are creating your first LE CHEMISEUR® shirt with our AI and would like to adjust the chest width (half-chest circumference)? This page is for you.

Best practice for the chest width

The chest width is the half-chest circumference measured on the shirt (not on the body). It sets the drape of the whole shirt. You should be able to pinch about 3 cm of fabric on each side for ease. The shirt should hug the torso without billowing while still allowing enough freedom of movement.

Trust the AI !

The LE CHEMISEUR® AI combines years of expertise with data from more than 50 000 clients. It works for the vast majority of people, and you are covered by our Fit Guarantee.

📏 You like an extra-slim look

Remove – 1 cm for a body-skimming shirt (you will loose a bit of freedom of movement). Also remove – 1 cm from the waist taper.

🥵 You run warm easily

Add + 1 or + 2 cm for comfort.

How to measure the chest width on a shirt you already own

Button the shirt, lay it flat, and measure the distance from one edge to the other just below the sleeves. Measure the full width without stopping at the seam.

If you want to compare with a shirt you already own, make sure to choose a non-stretch shirt.

Updated on: 10/12/2025