Press Kit

LE CHEMISEUR® is France's specialist in online made-to-measure shirts. Founded in 2014 by Jan Schütte, a German engineer based in Paris, the brand has grown +42% over the last twelve months, has been B Corp certified since 2024 and is now launching in Germany and Switzerland for the first time. Everything runs on a proprietary, frugal AI built in-house — what its founder calls the precision economy: using technology to deliver a personalised, high-quality product while eliminating waste.

At a glance: 50,000+ customers · fit AI trained on 50,000 men · patented Fit Key · 5% returns (vs 20-30% in fashion e-commerce) · -43% CO₂ · Observatoire de la chemise: 82,384 shirts analysed · shirts from €99 · B Corp certified.

1. A proprietary, frugal AI that creates real value

Customers enter their weight, height and age; in seconds, the site calculates their ideal fit from the data of more than 50,000 men. In the vast majority of cases, it gets the fit right first time. Unlike brands betting everything on ChatGPT-style generalist AI, LE CHEMISEUR® built a simple, specialised model trained on its own data: on a narrow, measurable problem, that's both more reliable and more frugal. The concrete result: a 5% return rate, where fashion e-commerce typically runs at 20-30%, and a conversion rate up +30% on the old tape-measure method.

2. The patented Fit Key — bespoke made tangible

Inside every shirt, next to the customer's name, sits a personal 5-character code: the Fit Key. It holds all their measurements and lets them reorder in one click, with no re-measuring. Patented by Jan Schütte in 2012 and unique worldwide, it makes bespoke tangible — and fun.

3. The Observatoire de la chemise — 82,384 shirts as an open data source

Since July 2026, LE CHEMISEUR® has published, under the name Observatoire de la chemise (the shirt report), the analysis of 82,384 shirts ordered between July 2014 and July 2026 — anonymised aggregates, full methodology, every figure with its sample size. Because every shirt here is configured freely, the data doesn't reflect what's on the rack, but what men actually choose when nothing is imposed on them. Nowhere else in Europe is this observable on such a scale.

Four findings from the first edition:

• Three men in four fit no standard size. 75.8% of the 22,095 measured customers find no ready-to-wear size where every measurement falls within tolerance; the first to fail are back length (46%) and sleeve length (40%).
• Slim fit ends at 25. The fitted cut is only in the majority between 18 and 24 (60.1%); from 25 modern fit takes over, and after 55 regular fit — up to 78.2% among the over-65s.
• The fabric calendar runs like clockwork. Linen crosses 10% of orders in May and peaks in June (26.9%); flannel crosses it in November.
• The perfect fit is found in two shirts. 57.6% of customers who reorder adjust at least one measurement after their first shirt — most often the waist, with a median amplitude of 2 to 3 cm. After that the fit is settled, and stored by the Fit Key.

The page is permanent and updated every year. Charts and tables are free to reuse, including commercially, provided you credit “Observatoire de la chemise — LE CHEMISEUR®” and link to the page: lechemiseur.fr/en/observatoire. Detailed data and specific breakdowns on request.

4. Zero stock, no waste: a B Corp-certified model

Every shirt is made after it's ordered: no stock, no overproduction, nothing unsold — and never any sales or promotions. The industry, by contrast, produces billions of surplus garments every year, up to $140 billion in unsold goods (Business of Fashion & McKinsey, The State of Fashion 2025). B Corp certified in 2024 (score 95.3/200; threshold: 80), the brand sews its shirts in Tunisia, in a partner atelier since 2015 whose mostly-female team is on permanent contracts. Premium European fabrics, mainly French and Italian (including Verne & Clet); German finishings (Wendler interlinings, Gütermann thread). Plane-free delivery, plastic-free packaging: -43% CO₂ versus the fashion e-commerce average.

5. The new luxury: fashion as a service

Classic luxury puts models on a pedestal; here, the customer is the centre of attention. The fit adapts to every body, the customer's name replaces the label, and no logo shows on the outside — only fine fabrics and comfortable cuts. This is the new luxury LE CHEMISEUR® stands for: consume less, but better — products made for you, with no waste. Pleasure and ecology no longer pull in opposite directions.

6. A French brand founded by a German — now heading for DACH

Jan Schütte is an engineer, a graduate of Centrale Paris, and spent six years at Toyota Europe as a just-in-time specialist. His philosophy: apply German industrial rigour to French fashion — the right product, at the right moment, with no waste. After ten years in France, the brand is going international: site translated into English and German in 2025, VAT and customs pre-arranged for Switzerland. For Jan, it's “a return to his roots”.

Proof & reviews: 4.7/5 on Google (900+ reviews) · 4.8/5 on Trustpilot · 100-day Fit Guarantee, usually with no need to return the shirt · strong loyalty (the Fit Key makes every reorder instant) · break-even and self-financed after €1.8M raised.

Fact sheet

• Founder: Jan Schütte (German, Centrale Paris engineer, ex-Toyota Europe)
• Founded: 2014 · HQ: 22 rue Notre-Dame-de-Nazareth, 75003 Paris
• 50,000+ customers · +42% growth over the last 12 months · B Corp certified (95.3/200)
• Return rate: 5% · CO₂ reduction: -43% vs fashion e-commerce
• Shirts €99 to €195 (French-fabric best-seller €129)
• Shirts sewn in Tunisia, European fabrics · delivery in 2-3 weeks
• 100-day money-back guarantee · patented Fit Key (one-click reorder)
• Observatoire de la chemise: 82,384 shirts analysed (2014-2026), free to cite

Press contact: lecontact@lechemiseur.fr · +33 1 75 85 02 48 · lechemiseur.fr/en/tailor-made-shirts · Press photos: Google Drive · Data & charts: Observatoire de la chemise · Founder interviews on request.