Slenzer Start a brief

Concept film · AI-generated visualisation

A shaft of warm light falls across raw cotton fibre and draped indigo jersey on a factory worktable.

Slenzer · Bangladesh & UK

From fibre to fabric. From vision to reality.

We turn carefully selected materials into finished garments through precision manufacturing, skilled craftsmanship and meticulous quality control.

Explore our manufacturingView our portfolio
Cotton bales, a swatch library and racks of organised fabric rolls.

02 — Raw materials

It starts with what you can touch.

Composition, weight and hand feel are chosen for the garment, not the other way round. Every fabric is matched to how it will be worn.

  • Composition
  • GSM
  • Hand feel
  • Colour consistency
Ring-spinning frames winding white cotton yarn onto bobbins.

03 — Spinning

Fibre becomes yarn, under our roof.

Even twist and consistent count give yarn the strength and regularity a good fabric needs. Spinning in-house means we control it from the first thread.

  • Yarn count
  • Twist
  • Tensile strength
A circular knitting machine producing a tube of cotton jersey.

04 — Knitting

Loop by loop, jersey takes shape.

Circular knitting turns yarn into the stretch fabrics behind T-shirts, polos and hoodies: single jersey, rib, interlock and fleece.

  • Single jersey
  • Rib
  • Fleece
Warp threads rising and falling on a loom as woven cloth forms.

05 — Weaving

Woven is a different structure, and a different craft.

Knit fabric is built from loops. Woven cloth interlaces warp and weft at right angles, giving the stable, crisp base for shirts, overshirts and trousers.

  • Poplin
  • Twill
  • Oxford
Indigo fabric running out of a stainless-steel dyeing machine through soft steam.

06 — Dyeing & finishing

Colour, held to a standard.

Lab dips are approved against your reference before bulk dyeing. Washing and finishing then set the hand feel, shrinkage and dimensional stability.

  • Lab dips
  • Shrinkage control
  • Hand feel
A straight-knife cutter guided along a T-shirt pattern on stacked indigo jersey.

07 — Cutting

Patterns planned. Panels cut true.

Fabric is spread in layers, a marker is planned to make good use of every metre, and panels are cut to the approved pattern.

  • Marker planning
  • Ply spreading
  • Pattern accuracy
Operators guiding indigo T-shirt panels through industrial sewing machines.

08 — Construction

Where panels become a garment.

Skilled operators join, overlock and finish every seam, building necklines, shoulders, hems and cuffs to the approved sample.

  • Overlock
  • Coverstitch
  • Rib necklines
An inspector measuring a finished indigo T-shirt on a bright inspection table.

09 — Quality control

Checked against your spec, not ours.

Measurements, seams, fabric appearance, labels and trims are inspected against the specification agreed for your order.

  • Measurements
  • Seams
  • Labels & trims
Hands folding an indigo T-shirt into a kraft box beside stacked cartons.

10 — Packed & dispatched

Folded, tagged, ready to travel.

Garments are folded, labelled and packed to your packing instructions, then prepared for shipment.

  • Folding
  • Labelling
  • Carton packing

Bangladesh · Manufacturing

Bangladesh time

Spinning, knitting, weaving, dyeing and finishing, cutting, sewing, quality control and packing.

United Kingdom · UK client office

UK time

Briefs, sampling coordination, account management and approvals.

01Capabilities

One roof, from fibre to carton.

Every stage of production happens in our own facility in Bangladesh. Fewer hand-offs means fewer places for quality, colour or timing to drift.

  1. 01

    Spinning In-house

    Cotton fibre drafted and spun into yarn for our knitting and weaving lines.

    Close view of spindles winding cotton yarn.
  2. 02

    Knitting In-house

    Circular-knit jersey, rib, interlock and fleece for T-shirts, polos and sweatshirts.

    Knitted jersey fabric emerging from a circular knitting machine.
  3. 03

    Weaving In-house

    Woven cloth such as poplin, twill and oxford for shirts, overshirts and trousers.

    Warp threads on a loom with woven cloth forming.
  4. 04

    Dyeing & finishing In-house

    Lab dips, bulk dyeing, washing and finishing to set colour, hand feel and stability.

    A technician comparing indigo lab-dip swatches on a light box.
  5. 05

    Cutting In-house

    Ply spreading, marker planning and cutting to the approved pattern.

    Pattern pieces marked out on layered fabric on a cutting table.
  6. 06

    Sewing In-house

    Lockstitch, overlock and coverstitch construction on organised production lines.

    A needle forming a neat seam on indigo jersey.
  7. 07

    Quality control In-house

    Inline and final checks against the measurements and construction agreed for your order.

    An inspector measuring a finished T-shirt.
  8. 08

    Labelling & packing In-house

    Labels, swing tags, folding and carton packing to your instructions.

    Folded garments and plain cartons ready for dispatch.

Also available

  • Product development support
  • Fabric development & sourcing
  • Sampling
  • Labelling & trims
  • Custom packaging
  • Quality reporting

02Portfolio

Four garments, four ways of making.

Sample projects that follow a garment from fabric to finished piece. They are design concepts that show our process, not client commissions.

03Working with us

From a brief to a delivered collection.

Your UK contact stays with you from the first conversation to delivery, while the factory team owns the making.

  1. 01

    Brief

    UK office

    Share your idea, a reference garment or a tech pack. We talk through fit, fabric, quantities and timing, then confirm what is realistic.

  2. 02

    Fabric & material selection

    UK office + factory

    We propose fabric constructions, weights and finishes, then send swatches and lab dips for your approval.

  3. 03

    Sampling

    UK office + factory

    A sample is made to your spec. You review fit and construction, and we revise until it is approved. Bulk production waits for your sign-off.

  4. 04

    Production planning

    Factory

    Yarn, fabric, trims and line time are planned against your approved sample, with a written schedule you can hold us to.

  5. 05

    Manufacturing

    Factory

    Spinning to packing in our own facility, with progress updates from your UK contact.

  6. 06

    Quality control

    Factory

    Inline and final inspections against the agreed measurements, construction and appearance standards.

  7. 07

    Delivery

    UK office

    Packed to your instructions and prepared for shipment, with your UK contact coordinating the hand-over.

Start with a brief

04Materials & craftsmanship

The details buyers feel first.

Fabric weight, a neckline that lies flat, a hem that does not twist: small decisions that decide whether a garment is worn for a season or for years.

Fabric weight guide

Typical ranges for orientation. Your final fabric and weight are agreed per style.

Typical fabric Single jersey

Pick a weight to add it to your brief.

Hands measuring the chest width of a finished T-shirt with a tape measure.

05Quality control

Checked at every stage, not just at the end.

The exact checks, tolerances and inspection levels follow the specification agreed for your order. These are the points we build them around.

  1. 01

    Fabric inspection

    Incoming fabric checked for appearance, shade and weight before cutting.

  2. 02

    Shade approval

    Lab dips and bulk shade matched to your approved reference.

  3. 03

    Pre-production sample

    A sample from bulk materials approved before the line starts.

  4. 04

    Inline checks

    Seams and construction checked on the line, not only at the end.

  5. 05

    Measurements

    Key points of measure checked against your size spec.

  6. 06

    Seams, stitching & trims

    Stitch quality, labels, trims and print placement verified.

  7. 07

    Final appearance

    Finished garments reviewed for overall appearance and finish.

  8. 08

    Packing check

    Folding, labelling and carton contents checked against your packing list.

06Why Slenzer

What you can expect from us.

07About Slenzer

A factory floor in Bangladesh. A client desk in the UK.

Slenzer brings a vertically integrated manufacturing operation in Bangladesh together with a client office in the United Kingdom, so brands get the depth of an integrated mill and a partner who works their hours.

Manufacturing
Bangladesh: Location to be confirmed
Client office
United Kingdom: Address to be confirmed
In-house stages
Spinning, knitting, weaving, dyeing & finishing, cutting, sewing, QC, packing
Founded
To be confirmed
Team & facilities
To be confirmed
Certifications
To be confirmed
A calm sampling room with swatch books, a folded indigo T-shirt and pattern pieces on an oak table.
Concept visual
A swatch library wall of folded fabric samples arranged by colour.
Concept visual

Step 1 of 3 · Your garment

What are you making?

Garment category required

Estimated quantity per style required

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