Activewear & Sports Clothing Sourcing from China: The Complete UK Brand Guide

Last updated: June 2026 · Written by TK Wang, Epic Sourcing UK

Let's have a frank chat about activewear. The UK private label market for gym wear, running kit, yoga gear, and performance sports clothing has exploded — and most of the brands you see on Instagram, selling on Shopify or pitching to independents, are sourcing the exact same way: directly from factories in China and Vietnam. The question isn't whether to source from Asia. It's how to do it properly, at the right cost, with the right compliance in place, and without getting burned.

This guide is for UK brand owners, fitness entrepreneurs, and retail buyers who want to build (or scale) a private label activewear range — and want an honest picture of what it actually takes. Whether you're placing your first 200-piece trial order or scaling to 5,000 units a season, this is the guide we wish existed when we first started working with UK brands in this space.

1. Why UK Brands Source Activewear from Asia

The UK activewear market is worth over £2 billion and growing faster than almost any other apparel segment. British consumers spent more on gym and performance wear in 2025 than ever before — driven by everything from hybrid working lifestyles to the ongoing fitness boom post-pandemic. The problem? Domestic manufacturing capacity for technical performance fabrics is essentially non-existent at a commercially viable scale. There is no UK equivalent to the factory clusters in Guangdong, Fujian, or Ho Chi Minh City that have spent decades perfecting the production of polyester-spandex blends, seamless knitting, and moisture-wicking treatments.

For UK brand owners, this isn't a compromise — it's simply the reality of the global textile supply chain. The same factories producing for Nike, Gymshark, and Lululemon are available to independent UK brands, provided you know how to approach them. At Epic Sourcing, we've helped dozens of UK activewear brands — from one-person startups placing 300-piece first orders to established sports retailers scaling to five-figure runs — find their manufacturing home in Asia. The cost differential alone makes the case: a technical yoga set that would cost £40–60 per unit to produce domestically (if you could even find a factory) can be sourced from a reputable Chinese manufacturer for £8–18 per unit depending on fabric spec and order volume.

The key is doing it right. This guide will walk you through every stage.

2. China vs Vietnam: Which Manufacturing Base is Right for You?

If you've been researching activewear sourcing for more than five minutes, you'll have encountered the China vs Vietnam debate. Both are legitimate options for UK brands — but they suit different situations. Here's the honest picture:

For most UK brands launching their first activewear line, China remains the default recommendation — not because Vietnam is inferior, but because China's lower MOQs, greater fabric diversity, and more established performance sportswear clusters make it more accessible at early scale. Vietnam becomes increasingly attractive once you're placing larger orders (1,000+ units per style) and can take advantage of the UKVFTA's duty savings.

The UKVFTA Duty Saving — Worth Doing the Maths

The UK-Vietnam Free Trade Agreement (UKVFTA) allows eligible goods manufactured in Vietnam to enter the UK at reduced or zero tariff rates. For most activewear categories — including women's leggings, sports bras, men's shorts, and performance tops — the MFN (standard) duty rate from China is 12%. The UKVFTA preferential rate on the same goods from Vietnam is currently between 0% and 9.6% depending on the specific commodity code.

On a £50,000 shipment of activewear from China, you'd pay £6,000 in import duty. The same shipment from Vietnam under UKVFTA could cost you as little as £0–4,800 in duty, depending on the specific codes and your ability to secure a valid proof of origin (Form EUR.1 or supplier declaration). At scale, this isn't a rounding error — it's a genuine cost advantage that more sophisticated UK activewear brands are already factoring into their manufacturing decisions.

3. Fabrics & Materials: What You Need to Know Before You Order

Fabric choice is the single biggest factor in the performance, cost, and perceived quality of your activewear range. The good news is that China's Fujian and Guangdong factory clusters have some of the most advanced textile machinery in the world. The bad news is that without a clear fabric specification, you'll receive whatever the factory has in stock — which may or may not be what you had in mind.

Core Activewear Fabrics and Their UK Use Cases

When briefing a factory, always specify: composition percentage, GSM weight, finish (e.g. matte, glossy, peached/brushed), and any performance treatments required (moisture-wicking, anti-odour, UPF rating). Factories will interpret a vague brief as licence to use whatever is cheapest. A written fabric specification — ideally referencing a similar product as a benchmark — will save you weeks of back-and-forth during sampling.

4. UK Compliance: Textiles Regulations, UKCA & Labelling Requirements

This is where most UK activewear brands get a nasty surprise — usually at customs. UK textiles and apparel regulations are specific, enforceable, and can result in product detention at Felixstowe or Southampton if you get them wrong. The good news is that compliance is entirely manageable if you plan for it from the start. Here's what applies to activewear imported into the UK.

Textile Labelling Regulations (UK)

Under the UK Textile Products (Labelling and Fibre Composition) Regulations 2012 (as retained in UK law post-Brexit), all apparel sold in the UK must carry a care label — permanently attached — showing:

• Fibre composition — listed by percentage in descending order (e.g. "88% Polyester, 12% Elastane"). Generic terms like "synthetic" are not acceptable.
• Care instructions — symbols to ISO 3758 standard or written instructions in English
• Country of origin — e.g. "Made in China" or "Made in Vietnam"
• Responsible party information — your business name and UK address
• Size label — using UK size notation (not US or EU sizing)

UKCA Marking — Does It Apply to Activewear?

Standard activewear (leggings, sports bras, gym tops) does not require UKCA marking. UKCA applies to goods covered by specific UK technical regulations — machinery, electronics, PPE, medical devices. Exceptions include high-visibility activewear meeting EN 20471, impact-protection clothing, and UPF-rated rashguards (which require substantiated test data for claims). For standard gym wear, what IS required is accurate labelling, and — if making performance claims — third-party test reports under the UK Consumer Protection from Unfair Trading Regulations 2008.

UK Import Documentation

Every activewear shipment requires CDS declaration with: EORI number, commercial invoice (description, HS code, quantity, FOB value, origin), packing list, bill of lading, and certificate of origin. For UKVFTA preference from Vietnam: REX (Registered Exporter) statement or Form EUR.1.

5. MOQ, Lead Times & Cost Breakdown

One of the first questions we hear from UK activewear brands is: "What's the minimum order?" Here's a realistic picture based on what we see with UK clients.

Realistic Cost Build-Up: A 300-Piece Private Label Leggings Run

6. Finding & Vetting Activewear Factories

Here's where most UK brand owners either get it right or get burned. The internet is full of factories — Alibaba, Global Sources, Made-in-China.com — but finding a reliable activewear manufacturer that communicates clearly and honours delivery windows is a different matter entirely. Key factors: existing brand client list, in-house fabric testing, dedicated sample room, ISO 9001 or BSCI/SMETA certification, clear FOB pricing, and standard 30/70 payment terms.

7. The Sampling Process Explained

The sampling process runs through four stages: Proto Sample (first factory attempt, 60–80% right, £80–£250 per style, 10–20 days); Fit/Revision Samples (2–3 rounds typically, £50–£150 each); Pre-Production Sample (PPS) (final approved version in production fabric — sign this off before placing the order); and TOP (Top of Production) (first pieces off the production line for consistency check). Always provide a tech pack — factories working from a reference photo produce far less accurate samples than those with a full specification sheet.

8. White Label vs Private Label vs Secret Label for Activewear

White Label (£699) — choose from factory's existing styles, add your own branding. Best for gym owners, PT studios, and first-time brand testers wanting low upfront commitment.

Private Label (£1,899) — your own designs. Epic Sourcing manages factory search, sampling, and production. Includes supplier due diligence, sample management, and pre-shipment inspection. Most UK activewear brand founders start here.

Secret Label (£3,299) — factory NDA, design exclusivity, full in-China production management, tech pack creation, and UK compliance documentation review. For established brands or large first orders requiring complete protection.

9. How Epic Sourcing Helps UK Activewear Brands

At Epic Sourcing, we've been helping UK brand owners manufacture activewear in China and Vietnam since the early 2020s. Our team includes UK-based account managers and in-China production managers who speak Mandarin, have visited the facilities they recommend, and understand factory culture from the inside.

10. Sustainability in Activewear Sourcing

Sustainability has moved from a marketing differentiator to a baseline expectation. The UK Green Claims Code (CMA) requires environmental claims to be substantiated. Key certifications: GRS (Global Recycled Standard) for rPET fabric claims; OEKO-TEX STANDARD 100 for harmful substance testing; BSCI / SMETA (Sedex) for social compliance — required by M&S, John Lewis, and most major UK retailers. UK Extended Producer Responsibility (EPR) regulations for textiles are expected by 2027, requiring businesses to register, report volumes, and contribute to end-of-life collection schemes.

Frequently Asked Questions

How much does it cost to start a private label activewear brand in the UK?

Realistically, budget £5,000–£15,000 for a first proper private label activewear range covering 3–5 styles. This includes the sourcing service fee (£1,899 with Epic Sourcing's Private Label package), sampling costs (£400–£800 across multiple rounds), first production order (200–300 pieces per style at £9–£18 per unit), LCL sea freight from China to Felixstowe (£400–£700), import duty (12% of FOB value from China), and initial packaging. At £13–£15 landed cost, retail pricing of £35–£55 delivers 60–75% gross margin — making the launch investment recoverable within the first 2–3 sell-throughs.

How long does it take to get activewear manufactured from China to the UK?

Total timeline from initial brief to goods in your UK warehouse is typically 16–26 weeks: design brief and factory selection (1–2 weeks), first sample (3–4 weeks), sampling revisions (2–6 weeks), production lead time (4–8 weeks), sea freight from China to Felixstowe or Southampton (28–35 days), UK customs clearance (1–3 days). The sampling stage is where first-timers consistently underestimate time. For any specific launch date — a fitness expo, seasonal window, or wholesale deadline — build at least 20 weeks of runway from brief day.

Do I need UKCA marking for activewear?

Standard activewear — leggings, sports bras, gym tops, shorts, hoodies — does not require UKCA marking. UKCA applies to specific regulated categories including PPE and sports protective equipment. What is legally required under the UK Textile Products Regulations 2012 is accurate fibre composition labelling, English-language care instructions, country of origin, and UK importer details on permanently attached labels. Making performance claims (moisture-wicking, UV protection, anti-odour) requires substantiating test data under the Consumer Protection from Unfair Trading Regulations 2008.

Is it worth sourcing activewear from Vietnam instead of China?

Vietnam is worth considering at scale — particularly for orders above 1,000 units per style. The UKVFTA preferential duty rate (0–9.6% vs 12% from China) creates meaningful savings on larger shipments. Vietnam's factories also carry stronger ESG credentials, important for brands selling into UK retailers or positioning as sustainable. Trade-offs: slightly higher MOQs, less technical fabric variety, marginally longer lead times. Most UK brands prove their range in China first, then diversify into Vietnam as volumes grow.

What payment terms should I expect from a Chinese activewear factory?

Standard terms are 30% T/T deposit on order confirmation, 70% T/T before shipment. Some established factories accept 30/70 with balance payable against Bill of Lading. Factories demanding 50%+ upfront or 100% before sampling should be treated cautiously. Working with a sourcing agent like Epic Sourcing provides additional protection — we maintain ongoing relationships with recommended factories and can negotiate terms unavailable to first-time direct buyers.