How to Measure a Shirt: Sleeve Length
With the shirt front and cuffs buttoned, lay the shirt down and spread it out on its front. Pull the sleeve away from the shirt body. Do not stretch the sleeve, but be sure it is fully extended and laying flat.
Place one end of the measuring tape at the center of the back of the collar, just below the collar band. Run the measuring tape from the center back below the collar to the edge of the yoke seam. Next, hold the tape down at the yoke seam and pivot slightly to align the measuring tape down the length of the sleeve to the end of the cuff.
Do not add extra to account for shrinkage. We will do that for you.*
*Standard Shrinkage Allowance:
Proper Cloth adds 0.5” to the Sleeve Length dimension to account for shrinkage.
A shirt ordered with a 34.0” Sleeve Length will measure 34.5” out of the box.
Extra Shrinkage Allowance:
For a shirt with an Extra Shrinkage allowance of 2% (for example), a shirt ordered with a 34.0” Sleeve Length will measure (34.0 + 0.5”) * (100% + 2%), amounting to 35.2” out of the box.
While we do our best to sew each garment precisely to its specification every time, hand sewing and different fabric types naturally result in small variations. We consider a tolerance of +0.25” to -0.25” acceptable for the Sleeve Length dimension.