Most denim supply chains are a relay race. Cotton is spun in one city, dyed in another, woven in a third, cut and sewn in a fourth, washed in a fifth, and packed somewhere else entirely. By the time a jean reaches a carton, nobody owns the whole line — which is exactly why quality problems are so hard to trace and lead times are always "approximate."
We decided early that we wouldn't run that way. Everything below happens inside one 18,000 m² mill in Taizhou, under one roof, on one schedule. Here's what that actually looks like.
01 · Cotton Intake
It starts with bales of long-staple cotton, graded for staple length, micronaire, and trash content. Longer staples spin into stronger, smoother yarn with less pilling — the foundation of a denim that will survive a decade of wear. Every bale is tested before it enters the line.
02 · Carding & Spinning
Carding opens the cotton, removes short fibres and debris, and aligns the staple into a continuous sliver. Spinning then twists that sliver into yarn. For selvedge warp, we typically use a slightly irregular, "slubby" yarn — the small variations in thickness are what produce the uneven, characterful indigo surface buyers love.
03 · Rope Dyeing
The warp yarn is bundled into ropes and dipped repeatedly through indigo vats, traditionally 6 to 8 dips, with air exposure between each. Indigo doesn't penetrate deep into the yarn — it coats it. That's deliberate: as the yarn wears, the coating fades while the core stays white, and that contrast is what makes genuine fades possible.
Why rope dyeing mattersCheaper denim is often dyed with a single dip or a synthetic shortcut. It looks dark on day one and fades flat. Rope-dyed indigo fades with depth — the blue wears into grey, then into the white core, in layers.
04 · Warping
The dyed ropes are unwound and reassembled into a warp beam — thousands of individual yarns arranged in exact order, under controlled tension. A single crossed thread here shows up as a permanent bar mark in the finished fabric, so this stage is inspected thread by thread.
05 · Shuttle Weaving
This is the heart of selvedge. A shuttle loom passes a single weft yarn back and forth across the narrow warp (typically 28–36 inches), turning at each edge to weave the fabric shut. That turnaround creates the self-edge — the selvedge — and the loom's coloured ID thread that buyers learn to read. Slow, narrow, beautiful.
06 · Inspection & Sanforizing
The raw fabric is inspected under light for slubs, bar marks, and weave faults, then sanforized: mechanically pre-shrunk so finished jeans hold their size through washing. If you're new to the sanforized vs. unsanforized decision, we covered it in our raw denim guide.
07 · Marker & Cutting
Selvedge is narrow, so cutting yield is everything. Our cutters build markers that align the selvedge edge with the outseam of each leg — the way selvedge has always been cut — to minimise waste and keep the edge visible where it belongs.
08 · Sewing & Assembly
Around 240 craftspeople assemble the jeans across dedicated stations: fly, pockets, yoke, inseam, outseam, waistband. Selvedge outseams are finished with a chain-stitch that lets the edge show, rather than hidden under an overlock — the detail that tells an educated buyer instantly what they're holding.
09 · Washing & Finishing
For raw lines, this step is deliberately skipped. For washed lines, we run in-house laundry with controlled stone, enzyme, and bleach programs, plus hand-sanding and whiskering. Because the laundry is ours, we can reproduce the exact wash across reorders instead of hoping a third party matches it.
10 · Hardware & Trim
Buttons, rivets, zippers, and labels are sourced to your spec — from standard YKK-grade hardware to custom die-cast branded rivets. Trims get their own durability and nickel-release testing before they touch a garment.
11 · QC, Packing & Shipping
Final inspection runs on a 4-point system, with an AQL pass before packing. Jeans are folded, ticketed, and cartoned to your retail spec, then shipped from our dock to 40+ countries. You get a QC report with images before the container leaves.
| Stage | In-house? | Typical time |
|---|---|---|
| 01–04 Cotton, spinning, dyeing, warping | Yes | Runs continuously |
| 05 Weaving | Yes | Slow by design |
| 06–07 Inspection, sanforizing, cutting | Yes | 2–4 days |
| 08–10 Sewing, wash, trim | Yes | 20–30 days |
| 11 QC & packing | Yes | 2–3 days |
Why One Roof Matters
- Traceability. A fault can be traced to a specific loom, dye lot, or operator — not guessed at.
- Firm lead times. No waiting on five vendors to agree on a date.
- Reproducible washes. Reorders match the original because the laundry never changed hands.
- Honest pricing. You're paying for cotton, labour, and looms — not for markup stacked across four middlemen.
If you want to see the mill for yourself, we welcome buyer visits and audits. If you'd rather start smaller, request a free swatch pack and judge the fabric first. Either way, the whole chain is open — which is the whole point.