Luxury you can measure
Beauty is subjective; quality is not. These are the standards we hold every piece to before it carries our name.
Nothing leaves the atelier unmeasured
We believe a luxury house should be able to prove its claims. Every component — from the thread to the zipper pull — is specified, sourced to standard, and checked. Below are the benchmarks we build to.
The numbers behind the make
Higher SPI means a tighter, stronger, more refined seam. We hold 8–10 on leather and up to 12 on fine tailoring — and never below.
Grams per square metre, specified per garment: lightweight shirting at ~180 GSM through to structured outerwear above 320 GSM.
Long-staple bonded polyester and waxed linen — chosen for tensile strength and resistance to abrasion and rot.
Natural corozo (tagua nut) and horn, polished and tested for impact. No brittle resin substitutes.
Solid, plated brass — never hollow or zinc. Weighted, corrosion-resistant, and engraved with the marten mark.
Premium metal zippers, cycle-tested for thousands of open/close actions to guarantee a lifetime of smooth use.
How we prove it
Durability Testing
Seam-strength, colour-fastness, abrasion (Martindale) and zipper-cycle tests are run on every new material and batch before production.
In-Line Inspection
Quality is checked at every station, not only at the end — so a fault is caught at the stitch, not after assembly.
Final 40-Point Inspection
Each finished piece is examined against a forty-point checklist: symmetry, stitch density, edge finish, hardware action, fit and finish.
Authenticity & Serialisation
A unique serialized SL number is recorded and attached to the piece, tying it to its materials, makers and inspection record.
Luxury Packaging Standards
Only pieces that pass inspection are wrapped to standard — acid-free tissue, dust bag, rigid box and authenticity card.
If we cannot measure it, we do not claim it.
Quality Assurance, Marten