Thread Report · 50 products analyzed · Updated June 13, 2026
What is Weekday made of?
Short answer: mostly plastic. Weekday relies heavily on synthetic fibres — 4% of their products are majority polyester. Here's the full breakdown.
Prefer the plain-English version? Read our Weekdaybuyer's guide →
According to Fibr's Thread Report (June 2026), 4% of Weekday's 50 analysed products are majority-synthetic, with an average natural-fibre content of 26.2%.
The full picture on Weekday.
Weekday leans heavily synthetic. Across 50 products, only 26.2% of fibre content on average is natural. Only 4% of products are polyester-heavy — relatively low compared to many retailers. Just 10% of products hit the 95%+ natural fibre mark — most items contain significant synthetic content. The most common fibre across Weekday products is Elastane, appearing in 86% of items.
How Products Break Down
- 66%
Synthetic
<30% natural fibre · 33 products
- 24%
Blend
30–85% natural fibre · 12 products
- 10%
Natural
85–100% natural fibre · 5 products
Most Common Fibres (% of products containing)
Where to buy (and avoid).
Not all categories at Weekdayare equal. Here's where the natural fibres are.
Mixed Bag · 40–70% natural
What we found.
Across 50 products analyzed, Weekday averages 26.2% natural fibre content.
4% of Weekday products are majority polyester — that's 2 items made mostly from plastic.
Only 10% of products (5 items) are 95%+ natural fibre.
Elastane is the single most common fibre, appearing in 86% of all Weekday products.
| Category | Products | Avg Natural % |
|---|---|---|
| Dress | 12 | 65.5% |
Sample Products
A selection of Weekday products from our database — from most natural to most synthetic. Click to view on the retailer's site.
The verdict.
Weekday is a tough sell if you care about natural fabrics. With 4% of products being polyester-heavy, most of what they sell is effectively plastic clothing. If you do shop here, be very selective and always check the composition.
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Frequently asked questions.
What is Weekday clothing made of?
Based on our analysis of 50 Weekday products, the average garment is 26.2% natural fibre. The most common single fibre is Elastane (in 86% of products). The remaining material is typically synthetic — polyester, polyamide, or acrylic.
Is Weekday cotton?
Sometimes — cotton appears in 28% of the 50 Weekday products we analyzed, but it's usually blended with synthetics. Only 10% of items are nearly all-natural (95%+ natural fibre), so check the composition before assuming a piece is pure cotton.
Is Weekday 100% cotton?
Some pieces are. Of the 50 Weekday products we analyzed, 5 are 100% cotton (or near-pure, 95%+) — that's 10.0% of the catalog. The rest are blends.
How much polyester does Weekday use?
4% of Weekday products are polyester-heavy, meaning polyester makes up 50% or more of the garment. This is below average for fast fashion retailers.
Is Weekday mostly synthetic?
4% of Weekday products are polyester-heavy (50%+ polyester). Average natural fibre content is 26.2%, so the rest of the catalog is still leaning synthetic in most cases.
Does Weekday use natural fabrics?
10% of Weekday products are nearly all-natural (95%+ natural fibre). Only a small fraction of their range avoids synthetic fibres entirely.
Is Weekday sustainable in terms of fabric?
Fabric composition is one factor in sustainability. With an average of 26.2% natural fibre, Weekday is below average 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/weekday.json ↓
- Computed stats (JSON)
- /api/thread-report/weekday
Suggested citation
Fibr Thread Report — Weekday, 2026-06-13. tryfibr.app/thread-report/weekday
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