Thread Report · 42 products analyzed · Updated June 15, 2026
What is Uniqlo made of?
Better than most. Uniqlo averages 79.9% natural fibre, which puts them ahead of many competitors. But not everything is equal.
Prefer the plain-English version? Read our Uniqlobuyer's guide →
According to Fibr's Thread Report (June 2026), 0% of Uniqlo's 42 analysed products are majority-synthetic, with an average natural-fibre content of 79.9%.
Uniqlo's t-shirts are 89% natural fibre, but their shirts are just 51.1%. That's a 38-point gap — where you shop within Uniqlo matters as much as whether you shop there at all.
The full picture on Uniqlo.
Uniqlo is one of the stronger performers in our dataset, averaging 79.9% natural fibre across 42 products we analyzed. Only 0% of products are polyester-heavy — relatively low compared to many retailers. On the bright side, 59.5% of Uniqlo products are made almost entirely from natural fibres (95%+). The most common fibre across Uniqlo products is Cotton, appearing in 47.6% of items.
How Products Break Down
- 14.3%
Synthetic
<30% natural fibre · 6 products
- 26.2%
Blend
30–85% natural fibre · 11 products
- 59.5%
Natural
85–100% natural fibre · 25 products
Most Common Fibres (% of products containing)
Where to buy (and avoid).
Not all categories at Uniqloare equal. Here's where the natural fibres are.
Safe Zones · 70%+ natural
Mixed Bag · 40–70% natural
What we found.
Across 42 products analyzed, Uniqlo averages 79.9% natural fibre content.
Uniqlo t-shirts are their strongest category at 89% natural fibre (8 products).
Their weakest category: shirts at just 51.1% natural (9 products).
Only 59.5% of products (25 items) are 95%+ natural fibre.
Cotton is the single most common fibre, appearing in 47.6% of all Uniqlo products.
| Category | Products | Avg Natural % |
|---|---|---|
| T-Shirt | 8 | 89% |
| Sweater | 9 | 81.2% |
| Shirt | 9 | 51.1% |
Sample Products
A selection of Uniqlo products from our database — from most natural to most synthetic. Click to view on the retailer's site.
The verdict.
Uniqlo is one of the better options for natural fabrics. With 59.5% of products being nearly all-natural, you have real choices here. Still — always check the label. Not every item is created equal.
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Frequently asked questions.
What is Uniqlo clothing made of?
Based on our analysis of 42 Uniqlo products, the average garment is 79.9% natural fibre. The most common single fibre is Cotton (in 47.6% of products). The remaining material is typically synthetic — polyester, polyamide, or acrylic.
Is Uniqlo cotton?
Sometimes — cotton appears in 47.6% of the 42 Uniqlo products we analyzed, but it's usually blended with synthetics. Only 59.5% of items are nearly all-natural (95%+ natural fibre), so check the composition before assuming a piece is pure cotton.
Is Uniqlo 100% cotton?
Some pieces are. Of the 42 Uniqlo products we analyzed, 20 are 100% cotton (or near-pure, 95%+) — that's 47.6% of the catalog. The rest are blends.
How much polyester does Uniqlo use?
0% of Uniqlo products are polyester-heavy, meaning polyester makes up 50% or more of the garment. This is below average for fast fashion retailers.
Is Uniqlo mostly synthetic?
0% of Uniqlo products are polyester-heavy (50%+ polyester). Average natural fibre content is 79.9%, so the rest of the catalog is mostly natural-led.
Does Uniqlo use natural fabrics?
59.5% of Uniqlo products are nearly all-natural (95%+ natural fibre). A decent portion of their range avoids synthetic fibres entirely.
Is Uniqlo sustainable in terms of fabric?
Fabric composition is one factor in sustainability. With an average of 79.9% natural fibre, Uniqlo is better than many competitors on this measure. Natural fibres generally biodegrade and shed fewer microplastics than synthetics.
Use this data.
The Thread Report is openly licensed. Cite it, download it, query it directly — just link back to the source page.
- Last updated
- Raw dataset (JSON)
- info.tryfibr.app/uniqlo.json ↓
- Computed stats (JSON)
- /api/thread-report/uniqlo
Suggested citation
Fibr Thread Report — Uniqlo, 2026-06-15. tryfibr.app/thread-report/uniqlo
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