Sewing is the stage where the structural parts of a suit are joined together in a strictly controlled technical sequence — front panels, back panels, sleeves, collar, lapels and lining. If cutting decides the silhouette on paper, sewing is where that silhouette becomes a real garment on your shoulders. At Mon Amie, it is the longest stage of the process and the one where craftsmanship shows most clearly.
What does sewing mean in tailoring?
Once the cloth has been cut into pieces according to the pattern, the tailor assembles them in a rigorous order: joining the body, building the canvas, setting the sleeves, attaching the collar, shaping the lapels, then finishing the lining and buttonholes. Every step has its own standard for stitch density, thread tension and seam direction.
The key point: sewing is not a single operation but a chain of dozens of smaller ones. A seriously made bespoke jacket typically goes through:
- Body assembly — joining the panels, shaping the waist and chest.
- Sleeve setting — the hardest step, determining the roundness of the sleeve head and your range of motion.
- Collar and lapels — where hand stitches give the lapel its soft, natural roll.
- Finishing — lining, buttons, pockets, hems and shape pressing.
Why sewing decides the quality of a suit
Two suits in the same fabric can differ enormously in price — most of that gap lives in the sewing. Good seams create three things the eye senses even without naming them:
- Surface smoothness: seams that don't pucker or twist, letting the cloth fall cleanly along the body.
- Structural durability: correct stitch density lets seams withstand daily strain at the armholes, back and trouser seat.
- A garment that feels alive: hand-sewn areas like the sleeve head and lapels allow the cloth to move with you, instead of sitting stiff like mass-produced fused jackets.
Industrial production is optimised for speed, so many areas that need softness get sewn rigid by machine. That is why a tailored jacket "breathes" with you even when the measurements look identical on paper.
How to inspect the sewing yourself
You don't need to be a tailor to judge sewing. A few quick checks:
- Turn the jacket inside out: seams should be straight, even and free of loose threads, with the lining sitting flat.
- Look at the shoulder and armhole: the sleeve seam should curve smoothly, with no kinks or puckering at the join.
- Run your fingers along the lapel: a soft roll with gentle spring signals hand work or a canvas construction; a flat, stiff lapel usually means fusing.
- Check the buttonholes: hand-worked ones show dense, tidy stitching that doesn't fray when tugged lightly.
Common misconceptions about sewing
- Believing "fully hand-sewn is always better" — many straight seams are actually stronger and more even by machine; hand stitching belongs where softness matters: shoulders, lapels, collar.
- Judging only the outside — the inside is where true workmanship shows.
- Equating handwork with slowness and arbitrary cost — good craft runs on process discipline, not whim.
- Assuming all seams are equal — on the same seam, a difference of a few stitches per centimetre changes the garment's lifespan.
A word from Mon Amie's artisans
In the Mon Amie workshop, sleeve setting is always entrusted to our most senior tailors, because a misalignment of just a few millimetres at the sleeve head throws off the whole balance of the jacket. Our advice: when trying a jacket, raise your arms, cross them, and sit down — if the seams at the armholes and back don't pull uncomfortably, the garment has been assembled properly.
A fine suit begins with accurate measurements and is completed by disciplined seams. If you'd like to see how a jacket comes together with your own eyes, book an appointment with Mon Amie and explore the tailoring process.