Siddiqsons Limited · est. 1958
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S.I.T.E., Karachi · Weaving denim since 1989

Pakistan's pioneer denim mill.

Siddiqsons Limited has woven denim at its S.I.T.E. Karachi facility since 1989 and now produces over 40 million yards a year across 10 fabric sorts, from rigid through bi-stretch — with yarn spun in-house, finishing on the only Jeanologia Laundry 5.0 in Pakistan, and garment manufacture under the same company.

Explore the 10 sorts Request a swatch

Fabric sorts

What denim fabrics does Siddiqsons produce?

Siddiqsons Limited weaves 10 denim sorts, from a rigid dobby construction through bi-stretch. Filter by stretch type, or browse all 10; each sort has its own specification page with composition, weight, width, finishes, applicable certifications and minimum order quantity.

Showing all 10 sorts.

  1. 01 Rigid

    TrueRigid

    Uncompromised rigid denim for authentic, hard-wearing construction.

    Weight
    12.5–14.5 oz
    Width
    58–60 in
    Content
    100% Cotton
    • STANDARD 100
    • Better Cotton
    • COTTON USA
    Specification
  2. 02 Stretch

    Stretch

    The core comfort-stretch construction, balanced for volume programmes.

    Weight
    9.5–11.5 oz
    Width
    56–58 in
    Content
    98% Cotton · 2% Elastane
    • STANDARD 100
    • Better Cotton
    • JOIN LIFE
    Specification
  3. 03 Super stretch

    Super Stretch

    High-elongation denim with engineered recovery for close-fitting silhouettes.

    Weight
    8.5–10 oz
    Width
    56–58 in
    Content
    72% Cotton · 26% Polyester · 2% Elastane
    • STANDARD 100
    • JOIN LIFE
    • ISO 9001
    Specification
  4. 04 Bi-stretch

    Bi-Stretch

    Stretch in both warp and weft, for garments that move on every axis.

    Weight
    9–11 oz
    Width
    55–57 in
    Content
    68% Cotton · 28% Polyester · 4% Elastane
    • STANDARD 100
    • JOIN LIFE
    • ISO 9001
    Specification
  5. 05 Stretch

    Premium

    Long-staple ring-spun denim for the top of the range.

    Weight
    11–13 oz
    Width
    57–59 in
    Content
    99% Cotton · 1% Elastane
    • STANDARD 100
    • GOTS
    • Better Cotton
    Specification
  6. 06 Stretch

    AirWeave

    Lightweight, breathable denim engineered for hot climates.

    Weight
    6.5–8.5 oz
    Width
    57–59 in
    Content
    96% Cotton · 2% Elastane · 2% Tencel™ Lyocell
    • STANDARD 100
    • Better Cotton
    • ISO 9001
    Specification
  7. 07 Stretch

    EcoSoft

    Recycled and organic content, certified end to end.

    Weight
    9–11.5 oz
    Width
    56–58 in
    Content
    60% Organic cotton · 38% Recycled cotton (PCW) · 2% Elastane
    • Up to 98% organic and post-consumer recycled fibre
    • GRS
    • RCS 100
    • RCS Blended
    Specification
  8. 08 Super stretch

    SculptFit

    High-recovery power stretch that holds the silhouette all day.

    Weight
    10–12 oz
    Width
    55–57 in
    Content
    70% Cotton · 28% Recycled polyester · 2% Elastane
    • 28% recycled polyester (GRS)
    • GRS
    • STANDARD 100
    • JOIN LIFE
    Specification
  9. 09 Rigid

    DobbyCraft

    Structured dobby weaves that give denim a visible surface.

    Weight
    10–12.5 oz
    Width
    57–59 in
    Content
    100% Cotton
    • STANDARD 100
    • Better Cotton
    • ISO 9001
    Specification
  10. 10 Stretch

    Color

    Full-spectrum coloured denim with clean-chemistry dyeing.

    Weight
    8–11 oz
    Width
    56–58 in
    Content
    98% Cotton · 2% Elastane
    • STANDARD 100
    • ZDHC
    • Better Cotton
    Specification

Illustrative specifications. The 2025 company profile names the 10 sorts but publishes no specification sheets. The figures on these cards are placeholders pending client data and are marked as such on every specification page.

Fabric R&D Studio

Where the next sort is developed before a buyer asks for it.

A mill that only weaves what it is already asked for is a commodity supplier. The studio is what makes Siddiqsons a development partner.

Siddiqsons Limited runs an in-house Fabric R&D Studio at its S.I.T.E. Karachi mill. It develops new constructions and shades, qualifies them against the certifications the group holds, and takes them from lab dip to hanger sample on the mill's own looms and laundry.

  1. 01 Brief Reference garment, target weight, stretch and price point.
  2. 02 Lab dips Shade and cast matched in the studio before any loom time.
  3. 03 Hanger samples Woven, finished and washed on the mill’s own laundry.
  4. 04 Bulk Approved sort moves to production with the same chain of custody.
  • 01

    New developments

    The studio develops constructions, weights and hand-feels ahead of season, so a buyer can sample a sort that is not yet in the range rather than choose from what already exists.

  • 02

    Responsible production

    Every development is specified against the standard it will be sold under — GOTS, OCS, GRS, RCS or OEKO-TEX Standard 100 — so a new sort is compliant on the day it is first offered.

  • 03

    Climate-positive denim

    Siddiqsons' programme to cut the footprint of a yard of denim: 45% renewable energy at group level, recycled fibre from the group's own recovery plant, and lower-water finishing.

  • 04

    Clean-chemistry dyeing

    Indigo and sulphur chemistry selected against the ZDHC Manufacturing Restricted Substances List — the same list the group's laundry is approved under — with effluent treated in the group's MBR plant.

  • 05

    Vortex print shades

    Printed shade and cast effects developed in the studio for looks that rope dyeing alone cannot produce, sampled on the same base sorts a buyer already runs.

  • 06

    Zero-virgin denim

    Constructions built without virgin cotton, drawing on the group's post-consumer waste recycling plant at 0.79 million lb per month of GRS and RCS certified fibre.

Jeanologia Laundry 5.0

How does Siddiqsons finish denim with 30–35% less water and chemicals?

Siddiqsons Limited operates the only Jeanologia Laundry 5.0 installation in Pakistan. Five stages replace the water, bleach and manual abrasion of a conventional laundry, and the line is ZDHC-approved. Fabric from this mill can be garment-finished on it without leaving the company.

  1. 01

    Laser

    Jeanologia laser systems reproduce whiskers, abrasion and worn-in patterns from a digital file, replacing hand sanding and potassium permanganate spray. The same file produces the same wash on every garment, in seconds rather than minutes of manual work.

    Replaces
    Hand sanding · potassium permanganate spray
    Equipment
    Jeanologia laser
  2. 02

    Ozone

    Ozone generated on site bleaches and reduces shade inside a closed machine, replacing chlorine bleach and most of the rinse cycles that were needed to wash it out.

    Replaces
    Chlorine bleach · rinse cycles
    Equipment
    VAV, Tonello, Yilmak, GreenMac and Jinaye machinery
  3. 03

    E-Flow

    E-Flow carries softeners, resins and dyes to the garment in nano-bubbles of air rather than in a bath of water, so a finishing step that used a full drum of water uses a fraction of it.

    Replaces
    Water baths for chemical application
    Equipment
    Jeanologia E-Flow
  4. 04

    H2Zero

    The H2Zero plant recovers process water from the laundry, treats it and returns it to the line, closing the loop inside the building instead of drawing fresh water for every cycle.

    Replaces
    Fresh-water intake per cycle
    Equipment
    Jeanologia H2Zero water recovery plant
  5. 05

    Water treatment

    Effluent that does leave the line goes to the group's membrane bioreactor plant: Siddiqsons Limited treats 4,320 m³ of wastewater a day and recycles 812,000 gallons, on a stated path toward zero liquid discharge.

    Replaces
    Discharge to drain
    Equipment
    MBR wastewater treatment

Every garment finished on the line is scored in Jeanologia's Environmental Impact Measurement (EIM) software for water, energy, chemical impact and worker health — which is how the saving against conventional finishing is tracked per garment rather than estimated per year.

Jeanologia Laundry 5.0 at Siddiqsons Limited — system and effect
ItemSpecificationNote
System Jeanologia Laundry 5.0 Only installation in Pakistan
Water & chemical reduction 30–35%
Nano-bubble finishing E-Flow
Water recovery H2Zero plant
Chemical compliance ZDHC approved
Process control EIM software Environmental Impact Measurement per garment
Equipment Jeanologia laser · Ozone (VAV, Tonello, Yilmak, GreenMac, Jinaye) · E-Flow · H2Zero · EIM software
Certifications covering the laundry ZDHC, OEKO-TEX STeP, Higg, ISO 14001
The full laundry page: laser, ozone, E-Flow and H2Zero in detail

Capacity & equipment

Denim fabric capacity and equipment at Siddiqsons.

40+ million yards
per year

Siddiqsons Limited produces over 40 million yards of denim fabric annually at its S.I.T.E. Karachi facility, across ten fabric sorts from rigid through bi-stretch construction.

The integrated textile chain around denim fabric at Siddiqsons Limited
Stage Division Capacity Note
Yarn Spinning 20.65+ million kg per year Post-consumer waste recycling at 0.79 million lb per month, GRS/RCS
Fabric Denim Fabric 40+ million yards per year This page
Finishing Laundry 30–35% less water and chemicals Jeanologia Laundry 5.0, ZDHC-approved
Garment Garments 13.2 million pieces per year Includes a LEED Platinum certified unit
Denim fabric division — specification sheet
Specification Value Note
Annual capacity 40+ million yards
Fabric sorts 10 DobbyCraft, TrueRigid, Stretch, Super Stretch, Premium, AirWeave, EcoSoft, SculptFit, Bi-Stretch, Color
Weight range 6.5–14.5 oz / 220–492 g/m²
Width range 55–60 inches
Development In-house Fabric R&D Studio
Location S.I.T.E., Karachi
Established 1989 Pioneer denim manufacturer in Pakistan

Equipment

  • Rope dyeing ranges
  • Slasher dyeing
  • Dobby looms
  • Sanforizing
  • Mercerising

Figures are drawn from the Siddiqsons Limited 2025 company profile and are pending client verification before publication.

Sourcing questions

What sourcing managers ask about Siddiqsons denim.

What denim fabrics does Siddiqsons produce?

Siddiqsons Limited produces ten denim fabric sorts: DobbyCraft, TrueRigid, Stretch, Super Stretch, Premium, AirWeave, EcoSoft, SculptFit, Bi-Stretch and Color. The range spans rigid through bi-stretch constructions from 6.5 to 14.5 oz, produced at the company's S.I.T.E. facility in Karachi with an annual capacity of over 40 million yards.

What is Siddiqsons' denim fabric production capacity?

Siddiqsons Limited produces over 40 million yards of denim fabric annually at its S.I.T.E. Karachi facility. The denim division is supported in-house by 20.65 million kilograms of yarn spinning per year and a garment operation producing 13.2 million pieces per year.

What is the minimum order quantity for Siddiqsons denim fabric?

Minimum order quantity for Siddiqsons denim fabric is typically 3,000 to 5,000 yards per colour and sort, depending on the construction and finish specified. Development and sampling quantities are handled separately through the Fabric R&D Studio. Confirm current MOQ with the commercial team when requesting a quotation.

What are Siddiqsons' lead times for denim fabric orders?

Siddiqsons Limited quotes bulk denim fabric lead times of 6 to 10 weeks from order confirmation, varying by sort, finish and quantity. Laboratory dips and hanger samples are produced ahead of bulk through the company's in-house Fabric R&D Studio.

How do I request a denim fabric swatch or sample from Siddiqsons?

Swatches and specification sheets for any Siddiqsons denim sort can be requested through the sample request form on this site. Each request is routed to the denim commercial team with the sort, quantity, brand and required timeline attached. Siddiqsons also develops custom constructions through its in-house Fabric R&D Studio.

Is Siddiqsons audited, and which social compliance programmes does it participate in?

Siddiqsons Limited is audited under SMETA through Sedex and participates in amfori BSCI, the Social & Labor Convergence Program and WRAP. The company is also validated under C-TPAT for supply chain security into the United States. Audit reports and current certificates are available to buyers on request.

Does Siddiqsons produce recycled or organic denim fabric?

Yes. Siddiqsons Limited operates a post-consumer waste recycling plant producing 0.79 million pounds per month of GRS and RCS certified yarn, and holds GOTS, OCS 100 and Organic Content Standard certification for organic fibre processing. The EcoSoft sort is built specifically around recycled and organic content.

What garment finishing and laundry capability does Siddiqsons have?

Siddiqsons Limited operates the only Jeanologia Laundry 5.0 installation in Pakistan, combining laser finishing, ozone treatment, E-Flow nano-bubble technology and an H2Zero water recovery plant. The installation is ZDHC-approved and reduces water and chemical consumption by 30 to 35 percent against conventional finishing.

Sample request

Request a swatch, a lab dip or a specification sheet.

Requests are routed to the denim commercial team at Siddiqsons Limited with the sort, quantity, brand and timeline attached. Custom constructions go to the Fabric R&D Studio.

  • Swatches and hangers for any of the 10 sorts
  • Lab dips matched before loom time
  • Current certificates and audit reports on request