Premium fashion development for brands that demand production-ready excellence — pattern making, grading, sample development and technical documentation, delivered in the CAD format your factory speaks.
The atelier worktable — pattern · precision · craft
Patterns built for balance, ease and construction logic — they sew cleanly at scale, in every size.
Tech packs and files your manufacturer executes without a single clarification email.
Fit-first sampling refined until the garment matches the brief — development revisions within the agreed scope are included, not billed as extra.
Brands across the globe, one accountable studio — clear scope, clear timelines, in writing.
A selection of development work — patterns, grading, tech packs and 3D sampling delivered to brands and designers worldwide. Client names withheld where confidentiality applies.
One studio, one standard of precision — whether you need a single production pattern or full apparel development of your collection.
Production-ready patterns engineered for clean fit, efficient sewing and consistent results at scale — from a sketch, photo or sample garment.
Accurate, size-chart-driven grading across full size ranges, including inclusive and extended sizing, with fit integrity preserved in every size.
Factory-fluent technical packages: measurements, construction, BOM, colourways and grading rules — clear, factory-ready documentation designed to reduce development questions and production errors.
Fit-sample coordination and revision management — we prepare sample-ready files, review fit photos or samples, and refine until the fit is approved.
Photorealistic 3D garment visualisation and virtual fitting — approve silhouette, fit and fabric behaviour before a single physical sample is cut.
Optimised markers that cut fabric waste and cost — nested for your lay lengths, fabric widths and production quantities.
Beautifully drafted PDF patterns for designers and home sewists — layered, in A4, US Letter, A0 and projector formats with clear instructions.
Manufacturing support from someone who knows the factory floor — costings review, size-set strategy, vendor communication and pre-production problem solving.
Apparel development across the full spectrum — from industrial uniforms to couture-level luxury collections.
Development work is only useful if your manufacturer can open it. Every THELYSH Atelier project can be delivered in the industry-standard CAD formats used by factories and studios worldwide — cleanly layered, annotated and organised, with a complete ZIP project handover so nothing gets lost between design and production.
Share sketches, references or a sample. We define scope, sizes, formats and deadlines — clearly, in writing.
Patterns are drafted and refined with obsessive attention to balance, ease and construction logic.
3D fit review or sample feedback. Revisions within the agreed scope are part of the process, not billed as extra.
Production-ready files in your factory's CAD format — Gerber, Lectra, Tukatech, DXF or PDF — documented and organised.
THELYSH Atelier was founded on a simple belief: the difference between a good garment and a beautiful one is decided long before the fabric is cut — in the pattern.
“A pattern is a promise. We make sure it's kept — in every size, every time.”
Our expertise was earned inside Sri Lanka's export apparel industry — one of the world's most demanding manufacturing environments, trusted by global fashion houses. We bring that production discipline to independent brands, with the personal care of an atelier.
Suresh Wijesiri — Founder · Pattern Engineer

Quick answers to what brands and designers ask us most.
A typical pattern development is delivered in 2–3 days. Larger scopes — full collections or complex styles — receive a clear timeline agreed with the quote before work begins.
Development revisions within the agreed scope are included as part of the refinement process — we refine until the fit matches the brief. If the design itself changes direction, we discuss the new scope together and agree pricing before continuing.
Every project is quoted individually — pricing depends on style complexity, size range and deliverables. You receive a clear quote before any work begins, so there are no surprises.
Gerber AccuMark (ZIP · MDL), Lectra Modaris, Tukatech, DXF (ASTM & AAMA), PLT plotter files, PDF and AI — with a complete organised ZIP handover on every project.
We prepare sample-ready files, review your fit photos or physical samples, and refine the pattern until the fit is approved, with revisions within the agreed scope included as part of the process.
Yes — from an independent designer developing a first collection to established international brands, every project receives the same precision and care.
Tell us about your collection — we reply within one business day with a clear scope and quote.