Body Sizing and Allowances vs. Shirt Sizing. What are the allowances?

To help ensure our shirts fit you perfectly, we use two types of measurements. 

Body Measurement:
Whether you use our Auto Size Me feature or bust out measuring tape to take your measurements manually using our video guide found here, that sizing is called your "Body Measurement" or "Body Sizing." With Original Stitch, your first shirt will be taken in body sizing. An allowance will then be added for fit.

The extra room between your Body Measurement and your Shirt Measurement is known as your "Allowance." The Allowance changes depending on the type of fit you like. We use pre-set allowances based on fit type (Super Slim, Slim, Regular, and Relaxed). You can view the numbers for the allowances below. After your first shirt, you will be able to adjust the sizing of the shirt itself by reordering in "Shirt Sizing".

Shirt Measurement:
This is the actual size of the shirt. If your shirt size was identical to your body size, it would likely be far too snug. Original Stitch takes your body measurement, applies the type of fit you'd like (Super Slim, Slim, Regular, and Relaxed) and generates what is known as the "Shirt Measurement." All repeat orders are placed in "Shirt Measurement" or "Shirt Sizing".

Another way to think about it is:

What you should know:

For the very first shirt you order, we focus solely on your body sizing and your fit preference. We input the allowances based on your body measurement, height and weight. 

Once you have that shirt, if it doesn't fit the way you'd like, you'll enter our free remake process where you can adjust your allowances for every element of your shirt. 

After your shirts fit you exactly the way you want, we will save your sizing profile with your account. From then on, any additional shirt purchasing is a breeze!

What are the allowances, anyway? I want numbers.
If there is no value listed, then there is no allowance in that measurement.

Super slim:

  • 4.5 inches (12 cm) to Chest, Waist, and Hip
  • 3 inches (8 cm) to Bicep
  • 2.5 inches (6 cm) to Cuffs


  • 5.5 inches (14 cm) to Chest, Waist, and Hip
  • 3.5 inches (9 cm) to Bicep
  • 2.5 inches (6 cm) to Cuffs


  • 6 inches (16 cm) to Chest, Waist, and Hip
  • 4 inches (10 cm) to Bicep
  • 2.5 inches (6 cm) to Cuffs


  • 7 inches (18 cm) to Chest, Waist, and Hip
  • 4.5 inches (12 cm) to Bicep
  • 2.5 inches (6 cm) to Cuffs


If you have any questions about sizing, please don't hesitate to write to us at

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