Medium. A standard alphanumeric clothing size designed to fit an average adult build within a specific brand's sizing matrix. In pattern drafting, a medium often serves as the base block or sloper from which other sizes are graded up or down. The exact measurements for a medium vary wildly between manufacturers and eras.
Heard on the job
We need to grade this jacket pattern up from an M to an XL before the production run.
Related terms
L
The standard abbreviation for large in garment sizing.
Small
A standard garment size intended for individuals with below-average measurements.
Grade
To trim the internal layers of a seam allowance to different widths to reduce bulk.
Sloper
A basic, custom-fitted pattern block used as a foundation for designing garments.