What is the Fit Key?
The Fit Key
The Fit Key is a 5-character alphanumeric code that stores every measurement of your custom shirt or trousers, letting you reorder in just one click.

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: 25/04/2025