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What is the Fit Key?

The Fit Key

The Fit Key is a 5-character code that stores the measurements of your custom shirt or trousers, allowing you to reorder in one click.

The Fit Key is printed flat inside your shirt, next to your Signature.

Create your first Fit Key simply by entering your Weight, Height and Age, and our AI will calculate your optimum fit. First choose a shirt.

To reorder using an existing Fit Key, locate it inside your garment or log in to your account and click “Use this shirt as a starting point.”

Updated on: 12/05/2025

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