How to size a blazer without a tailor in the room

The shoulder is the one thing a tailor cannot easily change, so it is the one thing you must get right. The seam should sit where your shoulder ends and your arm begins: no overhang, no pulling.

Measure a jacket you already own and trust: seam to seam across the back, flat. That number, more than any label, is your size.

For the chest, measure around the fullest part with a shirt on and add room for a comfortable breath. Length should cover the seat and roughly halve the body from collar to floor. Sleeves should finish at the wrist bone, leaving a clean half-inch of shirt cuff.

Send us those four numbers on the contact page and we will tell you which size to take, or whether a made-to-measure cut would serve you better.