Collar: Measure around your neck where the shirt's collar would normally sit, allowing room for one or two fingers to be inserted between the tape measure and your neck depending on how loose you like to wear your collar. Alternatively, take one of your existing business shirts that has a comfortable collar size and lay it out flat and measure the distance between the button and the middle of the button hole. If you are between sizes we recommend that you choose the larger size.

Waist: Measure around the natural waist, keeping the tape measure slightly loose

Jacket body length: For your jacket length, measure a well-fitting jacket from underneath the collar band at the centre of the back of the garment to the hem.

Shirt Sleeve length: Measure a shirt that fits you well as follows: lay the shirt flat and then measure from the centre of the back (not the shoulder), just below the collar, to the point of the shoulder, then down to the tip of the cuff.