Thread Report · 859 products analyzed · Updated July 28, 2026

What is Stradivarius made of?

It depends what you buy. Stradivarius is a mixed bag — some categories are mostly natural, others are mostly plastic. Here's where to shop smart.

According to Fibr's Thread Report (July 2026), 24.9% of Stradivarius's 859 analysed products are majority-synthetic, with an average natural-fibre content of 49%.

859Products Analyzed
49%Avg Natural Fibre
24.9%Polyester-Heavy
31%Nearly All-Natural

Stradivarius's jeanss are 93% natural fibre, but their jackets are just 12%. That's a 81-point gap — where you shop within Stradivarius matters as much as whether you shop there at all.

The full picture on Stradivarius.

Stradivarius sits in the middle of the pack with an average of 49% natural fibre across 859 products — a mix of natural and synthetic. About 24.9% of products are polyester-heavy, a notable but not dominant share. 31% of products are nearly all-natural (95%+ natural fibre). The most common fibre across Stradivarius products is Cotton, appearing in 46.3% of items.

How Products Break Down

859Products

  • Synthetic

    <30% natural fibre · 338 products

    39.3%

  • Blend

    30–85% natural fibre · 225 products

    26.2%

  • Natural

    85–100% natural fibre · 296 products

    34.5%

Most Common Fibres (% of products containing)

Cotton
46.3%
Elastane
43.7%
Polyester
36.8%
Viscose
21.5%
Polyamide
13%

Where to buy (and avoid).

Not all categories at Stradivariusare equal. Here's where the natural fibres are.

Safe Zones · 70%+ natural

Jeans93% natural · 126 productsShorts74.9% natural · 67 products

Mixed Bag · 40–70% natural

Shirt64.1% natural · 53 productsT-Shirt62.8% natural · 106 productsPants45.3% natural · 117 productsSkirt40.3% natural · 26 products

Caution · under 40% natural

Dress34.7% natural · 120 productsCoat23.6% natural · 21 productsBlazer15.5% natural · 11 productsJacket12% natural · 29 products

What we found.

Across 859 products analyzed, Stradivarius averages 49% natural fibre content.

24.9% of Stradivarius products are majority polyester — that's 214 items made mostly from plastic.

Stradivarius jeanss are their strongest category at 93% natural fibre (126 products).

Their weakest category: jackets at just 12% natural (29 products).

Only 31% of products (266 items) are 95%+ natural fibre.

All categories ranked by natural fibre percentage
CategoryProductsAvg Natural %
Jeans12693%
Shorts6774.9%
Shirt5364.1%
T-Shirt10662.8%
Pants11745.3%
Skirt2640.3%
Dress12034.7%
Coat2123.6%
Blazer1115.5%
Jacket2912%

Sample Products

A selection of Stradivarius products from our database — from most natural to most synthetic. Click to view on the retailer's site.

Low-rise straight-leg jeans with rhinestones One Dilemma100% Natural
Low-rise straight-leg jeans with rhinestones One Dilemma
Cotton 100%
D60 denim mini skirt100% Natural
D60 denim mini skirt
Cotton 100%
Macramé shoulder bag100% Natural
Macramé shoulder bag
Cotton 100%
Basic heavy weight striped regular fit T-shirt100% Natural
Basic heavy weight striped regular fit T-shirt
Cotton 100%
Striped balloon trousers82% Mixed
Striped balloon trousers
Cotton 64%Viscose 36%
Super high-waist82% Mixed
Super high-waist
Cotton 65%Modal 33%Elastane 2%
Super barrel jogger trousers81% Mixed
Super barrel jogger trousers
Cotton 81%Polyester 14%Elastane 5%
Crochet buckle ballet flats80% Mixed
Crochet buckle ballet flats
Cotton 80%Polyurethane 15%Polyester 5%
Rustic cape T-shirt30% Synthetic
Rustic cape T-shirt
Viscose 60%Polyester 40%
Striped rustic cape T-shirt30% Synthetic
Striped rustic cape T-shirt
Viscose 60%Polyester 40%
Satin darted trousers with chain belt30% Synthetic
Satin darted trousers with chain belt
Viscose 60%Polyamide 40%
Long sleeve halter neck T-shirt28% Synthetic
Long sleeve halter neck T-shirt
Polyester 68%Cotton 28%Elastane 4%

The verdict.

Stradivarius isn't great, but it's not the worst either. You can find natural fibre products here if you know where to look. Stick to the categories we flagged as safe zones, and check individual items with Fibr before buying.

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Frequently asked questions.

What is Stradivarius clothing made of?

Based on our analysis of 859 Stradivarius products, the average garment is 49% natural fibre. The most common single fibre is Cotton (in 46.3% of products). The remaining material is typically synthetic — polyester, polyamide, or acrylic.

Is Stradivarius cotton?

Sometimes — cotton appears in 46.3% of the 859 Stradivarius products we analyzed, but it's usually blended with synthetics. Only 31% of items are nearly all-natural (95%+ natural fibre), so check the composition before assuming a piece is pure cotton.

Is Stradivarius 100% cotton?

Some pieces are. Of the 859 Stradivarius products we analyzed, 260 are 100% cotton (or near-pure, 95%+) — that's 30.3% of the catalog. The rest are blends.

How much polyester does Stradivarius use?

24.9% of Stradivarius products are polyester-heavy, meaning polyester makes up 50% or more of the garment. This is below average for fast fashion retailers.

Is Stradivarius mostly synthetic?

24.9% of Stradivarius products are polyester-heavy (50%+ polyester). Average natural fibre content is 49%, so the rest of the catalog is mixed.

Does Stradivarius use natural fabrics?

31% of Stradivarius products are nearly all-natural (95%+ natural fibre). A decent portion of their range avoids synthetic fibres entirely.

Is Stradivarius sustainable in terms of fabric?

Fabric composition is one factor in sustainability. With an average of 49% natural fibre, Stradivarius is about average on this measure. Natural fibres generally biodegrade and shed fewer microplastics than synthetics.

Methodology: We analyzed 859 Stradivariusproduct pages, extracting the fabric composition listed by the retailer. Products are categorized by name keywords. Natural fibre percentage is the sum of all natural fibres (cotton, linen, silk, wool, viscose, lyocell, etc.) in each product's composition. Data is refreshed monthly.

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
License
Free to cite with attribution
Raw dataset (JSON)
info.tryfibr.app/stradivarius.json ↓
Computed stats (JSON)
/api/thread-report/stradivarius
About the dataset
How it's built & how to cite it
LLM index
/llms.txt

Suggested citation

Fibr Thread Report — Stradivarius, 2026-07-28. tryfibr.app/thread-report/stradivarius

Related reports.

Is Stradivarius Sustainable?What the fabric data says — and what it can'tStradivarius Skirt26 products, 40.3% naturalStradivarius Jeans126 products, 93% naturalStradivarius Pants117 products, 45.3% naturalStradivarius Dress120 products, 34.7% naturalPolyester at StradivariusIn 36.8% of productsCotton at StradivariusIn 46.3% of productsElastane at StradivariusIn 43.7% of productsStradivarius vs Abercrombie & Fitch49% vs 73.7% naturalStradivarius vs Acne Studios49% vs 78.4% naturalBrand rankingsSee where every brand lands on natural fibreAbout the Thread ReportHow the dataset is built, and how to cite it

Explore the Thread Report

Part of an openly-licensed dataset.

This page is one view of Fibr's Thread Report — fabric composition data for major fashion retailers, free to read and cite. Explore the rest:

About the Thread ReportWhat the dataset is, how it's built, and how to cite it.All brand reportsFabric breakdowns for every retailer we track.Brand rankingsWho uses the most natural fibre — and the most polyester.Brand comparisonsHead-to-head fabric data for every viable brand pair.Research findingsOriginal findings built on the dataset.State of FabricThe annual report on fashion's fibre mix.MethodologyHow we classify fibres and compute every number.Fabric guides & researchHow to read labels, decode fibres, shop smarter.

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