A guided tour through the hidden architecture of a well-cut blazer — collar, gorge, lapel roll and back vent — and what each part tells you about the hand that made it.
A blazer is the most engineered thing a woman can wear, and the least understood. From the outside it looks like a flat field of cloth. Inside it is a small piece of architecture — a structure that has to hold a shape while letting a living body breathe, reach and sit. To buy one well, you have to learn to read it.
Start at the collar
The collar is where a tailor either tells the truth or hides. A good collar sits flat against the back of the neck with no gap, no float, no roll of cloth standing away from the body. That clean meeting of collar and neck is not luck. It is the result of the undercollar being cut on the bias and pad-stitched by hand so the felt underside grips and the cloth above rolls home. Lift the collar gently. If you find a layer of dense felted wool stitched in rows beneath it, you are holding something built to last.
The gorge and the lapel roll
The gorge is the seam where the collar meets the lapel — that small notch near the throat. Its height changes the entire mood of a jacket: a higher gorge reads sharp and modern, a lower one soft and classical. But the detail that separates the considered from the cheap is the lapel roll. A lapel should not be pressed flat to the chest like a sticker. It should curl away in a soft, living roll that begins at the top button and breathes outward. Press a lapel flat and you kill the jacket. Let it roll, and it looks alive.
“A jacket is not cut to be looked at flat. It is cut for a body in motion, for the woman walking away as much as the one arriving.”
Yaya, Founder & Creative Director
The chest and the drape
Run a flat hand down the chest of the jacket. It should feel softly full, never hollow and never stiff like card. Beneath that cloth sits the canvas — the floating chest-piece that gives a blazer its quiet, sculptural fullness. A good chest drapes; it falls into a gentle convex curve over the bust and ribs without a single ripple. Ripples mean the cloth is fighting the structure underneath. Smooth, living fullness means they are working together.
Read the back
Most women only ever study the front of a jacket in the mirror. The back tells you more. Look for these things:
- A clean back, free of horizontal pull lines under the collar — those mean the jacket is short in the back or tight across the shoulders.
- A centre seam that hangs plumb, perpendicular to the floor, never swinging to one side.
- Vents that lie closed and flat when you stand still, opening only when you move — never gaping like an envelope.
- A hem that is level all the way round, parallel to the ground, not dipping at the back.
The buttons and the cuff
On a serious jacket the buttonholes are worked by hand — look for the slightly raised, hand-rolled edge and the small bar tack at each end. The cuff buttons should sit close together, almost kissing, a detail tailors call a stack. And if the sleeve buttons actually unbutton, you are looking at a working cuff: a quiet signal that someone built this the slow way. None of it shows across a room. All of it shows up over years.
Why the anatomy matters
You do not need to sew to choose well. You need to know what you are looking at. A collar that grips, a lapel that rolls, a chest that drapes, a back that hangs plumb — these are not decoration. They are the difference between a jacket you wear for a season and one your daughter borrows in twenty years. At the maison we cut every blazer with this anatomy in mind, because a beautiful surface is only ever a report on the structure beneath it.
Learn to read the inside of a jacket, and you will never again be fooled by a flattering hanger. The cloth can lie. The architecture cannot.
