Thread Report — Comparison

Acne Studios vs Sandro: Fabric Composition Compared.

We pulled fabric composition data from 387 Acne Studios products and 434 Sandro products. Acne Studios comes out clearly ahead at 77.6% average natural fibre vs Sandro's 55.8% — a 21.8-point gap.

TL;DR

Acne Studios wins on both natural fibre content (77.6% vs 55.8%) and on having fewer polyester-heavy products (9.8% vs 16.6%). The headline gap is 21.8 percentage points of natural fibre per garment.

77.6%Acne Studios avg natural %
55.8%Sandro avg natural %
821Products analysed

By the Numbers

MetricAcne StudiosSandroBetter
Products in sample387434Sandro (larger sample)
Avg natural fibre %77.6%55.8%Acne Studios (over Sandro)
% items ≥95% natural57.4%27.6%Acne Studios (over Sandro)
% items polyester-majority9.8%16.6%Acne Studios (over Sandro)

Average natural fibre % per garment

Acne Studios
77.6%
Sandro
55.8%

% of catalogue that's polyester-majority

Acne Studios
9.8%
Sandro
16.6%

% of catalogue that's nearly all-natural (≥95%)

Acne Studios
57.4%
Sandro
27.6%

Top Fibres, Side by Side

How often each fibre appears across each brand's catalogue. A higher number means more products in the sample list that fibre on the label.

FibreAcne Studios (% of products)Sandro (% of products)Diff
Cotton0%0%+0
Polyester0%0%+0
Viscose0%0%+0
Elastane0%0%+0
Wool0%0%+0
Polyamide0%0%+0

By Category

Average natural fibre % per garment, by category. Counts in parentheses show the number of products from each brand in the sample.

CategoryAcne Studios (count)Sandro (count)Diff
Pants92.8% (36)53.5% (43)+39.3
Dress63.9% (29)33.6% (77)+30.3
Sweater93.2% (10)66.6% (16)+26.6
Shorts81.7% (19)55.1% (16)+26.6
Shirt88.5% (31)66.5% (37)+22
Coat82.3% (12)64.5% (7)+17.8
Jacket72.8% (40)55.9% (51)+16.9
T-Shirt86.9% (42)92.8% (14)-5.9
Jeans94.8% (73)91.4% (46)+3.4
Skirt55.3% (19)52.4% (44)+2.9

Where they're similar

Both brands lean on the same core fibres. cotton, polyester, viscose appear in the top five for both Acne Studios and Sandro.

Where they differ

Acne Studios runs 21.8 percentage points higher on average natural fibre than Sandro (77.6% vs 55.8%). Sandro is markedly more polyester-heavy: 16.6% of items are 50%+ polyester, vs 9.8% at Acne Studios. If you specifically want nearly-all-natural garments, Acne Studios has 57.4% of its catalogue at that level — Sandro sits at 27.6%. The biggest category divergence is pantss — Acne Studios at 92.8% natural fibre, Sandro at 53.5%.

Verdict

Acne Studios is the clearer pick on fabric composition — 21.8 percentage points more natural fibre on average than Sandro, with 57.4% of items at the nearly-all-natural mark vs 27.6%. That said, neither brand is "natural-only" — even at Acne Studios, the majority of items contain some synthetic fibre. Always check the label.

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Frequently Asked Questions

Is Acne Studios or Sandro better quality fabric?

Based on average natural fibre content, Acne Studios edges ahead — 77.6% vs 55.8% per garment across the 821 products we analysed. Higher natural fibre content generally correlates with better breathability, fewer microplastics, and longer wear.

Does Sandro use more polyester than Acne Studios?

Yes. 16.6% of Sandro products are polyester-heavy (50%+ polyester), compared to 9.8% at Acne Studios.

How many products did you analyse for Acne Studios vs Sandro?

387 Acne Studios products and 434 Sandro products — every item with a parseable fabric composition label from each brand's site.

Which has more 100% natural pieces — Acne Studios or Sandro?

Acne Studios. 57.4% of Acne Studios products are nearly all-natural (95%+ natural fibre by composition) versus 27.6% at Sandro.

What's the most common fibre at Acne Studios and Sandro?

Cotton is the most common fibre at Acne Studios (in 61% of products), while Viscose leads at Sandro (50% of products).

Are Acne Studios pantss better than Sandro's?

For pantss specifically, Acne Studios averages 92.8% natural fibre vs Sandro's 53.5%. That's a meaningful gap — if you're shopping that category, Acne Studios is the safer default.

→ Full Acne Studios report→ Full Sandro report→ All brands ranked

Related reports.

Acne Studios Full Report387 products analysedSandro Full Report434 products analysedAll Brand RankingsEvery brand ranked by natural fibre %
Methodology: Fabric composition pulled from product pages on each brand's site. 387 Acne Studios products, 434 Sandro products. "Natural" counts cotton, linen, wool, silk, cashmere, hemp and leather at 100%; viscose, rayon, lyocell, modal and bamboo at 50% (semi-synthetic). Polyester-majority = 50% or more polyester by label. Comparing Acne Studios and Sandro. Data refreshed monthly.

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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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