Sector guides

Sourcing swim jammers from China

Knitted swim jammers from China carry UK duty of 8% to 12% under heading 6112, depending on textile material and rubber-thread content. Fibre content must be labelled for sale in Great Britain. Specify fit, lining and chlorine performance before approving production. Cambridge China Bridge sources swim jammers.

Written by Bono Xu, Founder, Cambridge China Bridge · 4 min read · Updated 2026-11-04

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UK duty on swim jammers

Read from the UK Trade Tariff on 1 October 2026, heading 6112 covers knitted or crocheted tracksuits, ski suits and swimwear. This guide covers close-fitting swim jammers with legs extending towards the knee. The table selects men's and boys' swimwear lines. See competitive swimming suits for the wider swimwear guide.

The selected lines carry 8% duty where rubber thread accounts for at least 5% by weight, and 12% on the other lines. Synthetic fibres and other textile materials have separate codes. The supplied records show no anti-dumping or countervailing duty, suspensions or attached import controls for these lines.

Confirm the commodity code using the garment construction, intended wearer, fibre composition and rubber-thread content. Ask for material evidence rather than treating a supplier's stretch-fabric description as proof of the reduced-duty classification.

UK duty on these lines for goods of Chinese origin (one code per row), read from the UK Trade Tariff on 1 October 2026.
GoodsCommodity codeDutyAnti-dumping or countervailing duty on China
Men's or boys' synthetic-fibre jammers with at least 5% rubber thread by weight6112 31 10 008%None
Other men's or boys' synthetic-fibre swim jammers6112 31 90 0012%None
Men's or boys' other-textile jammers with at least 5% rubber thread by weight6112 39 10 008%None
Other men's or boys' swim jammers of other textile materials6112 39 90 0012%None

Specify jammer fit, lining and pool performance

Specify polyester or polyamide blends, elastane content, knit structure, fabric weight and lining coverage. Give a graded measurement chart covering waist, hips, rise, inside leg and leg opening, with agreed tolerances. Approve the waistband, internal drawcord, gusset and seam construction on a worn sample, including movement into a crouch.

Agree checks for wet opacity, colour transfer, stretch recovery and chlorine exposure, with the test method and acceptance criteria written into the order. In Great Britain, the label must show fibre content, including any animal parts. Approve composition wording against the actual materials and agree care instructions. UK businesses importing or selling swim jammers are responsible for their safety.

Worked duty example

Illustrative example, not a quote: Illustrative order: 500 men's synthetic-fibre swim jammers; FOB value and freight are illustrative, not a quotation. under 6112 31 90 00, invoiced at £7,000 free on board, with £700 of freight and insurance to the UK. The customs value is £7,700. Duty at 12% is £924. Import VAT at 20% is charged on the customs value plus duty, £8,624, so it is £1,724.80. Import taxes total £2,648.80; a VAT-registered importer can usually reclaim the VAT, so the lasting cost is the £924 of duty. The import duty and VAT guide explains each step.

Inspection checklist

Fit: measure production garments against the size chart; check waist security, crotch comfort and leg openings on worn samples.

Fabric and lining: compare material evidence and handle with the approved sample; check wet opacity and lining coverage while stretched.

Seams and waistband: stretch crotch and panel seams; check broken stitches, puckering, drawcord attachment and waistband recovery.

Pool checks and arrival: repeat the agreed chlorine and colour-transfer checks; inspect for damp cartons, shade differences and incorrect labels. Record results using the inspection guide.

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What goes wrong

An approval sample can fit well while bulk garments have a shorter rise or tighter leg opening. Fabric substitutions can change recovery and wet opacity. Crotch seams may split under stretch, linings may bunch, and repeated pool exposure may leave the fabric faded or slack.

Retain approved fabric and garment samples, require approval for substitutions and check production garments before shipment and again on arrival. Do not accept a dry appearance check as evidence of wet opacity or pool durability.

Cambridge China Bridge sources these products for UK businesses, checking the factory and the documents before shipment. See factory verification. For own-brand ranges, see sourcing for brands.

Frequently asked questions

What is the UK import duty on swim jammers from China?

The selected knitted men's and boys' swimwear lines carry 8% where rubber thread is at least 5% by weight, and 12% otherwise. No anti-dumping or countervailing duty is recorded.

Does elastane content qualify swim jammers for lower duty?

The reduced-duty wording specifies rubber thread. Ask your customs broker to check the actual materials against that wording; an elastane percentage alone should not be your classification evidence.

What labels do swim jammers need?

For sale in Great Britain, the label must show fibre content, including any animal parts. Check the wording against the actual materials and agree care instructions before production.

How do I check chlorine resistance before ordering?

Agree a chlorine-exposure method and acceptance criteria with the supplier. Compare colour, stretch recovery, seams and lining before and after exposure using the proposed production fabric.

Sources

  1. UK Trade Tariff — commodity codes and duty
  2. Textile labelling
  3. Product safety advice for businesses

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