Thread Report — Comparison

Alo Yoga vs Nasty Gal: Fabric Composition Compared.

We pulled fabric composition data from 477 Alo Yoga products and 203 Nasty Gal products. Alo Yoga comes out clearly ahead at 34% average natural fibre vs Nasty Gal's 7.4% — a 26.6-point gap.

TL;DR

Alo Yoga wins on both natural fibre content (34% vs 7.4%) and on having fewer polyester-heavy products (33.5% vs 80.8%). The headline gap is 26.6 percentage points of natural fibre per garment.

34%Alo Yoga avg natural %
7.4%Nasty Gal avg natural %
680Products analysed

By the Numbers

MetricAlo YogaNasty GalBetter
Products in sample477203Alo Yoga (larger sample)
Avg natural fibre %34%7.4%Alo Yoga (over Nasty Gal)
% items ≥95% natural19.3%4.4%Alo Yoga (over Nasty Gal)
% items polyester-majority33.5%80.8%Alo Yoga (over Nasty Gal)

Average natural fibre % per garment

Alo Yoga
34%
Nasty Gal
7.4%

% of catalogue that's polyester-majority

Alo Yoga
33.5%
Nasty Gal
80.8%

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

Alo Yoga
19.3%
Nasty Gal
4.4%

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.

FibreAlo Yoga (% of products)Nasty Gal (% of products)Diff
Elastane0%0%+0
Polyester0%0%+0
Nylon0%0%+0
Cotton0%0%+0
Cashmere0%0%+0
Acrylic0%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.

CategoryAlo Yoga (count)Nasty Gal (count)Diff
Dress31.2% (22)7.2% (196)+24

Where they're similar

Both brands lean on the same core fibres. elastane, polyester, cotton appear in the top five for both Alo Yoga and Nasty Gal.

Where they differ

Alo Yoga runs 26.6 percentage points higher on average natural fibre than Nasty Gal (34% vs 7.4%). Nasty Gal is markedly more polyester-heavy: 80.8% of items are 50%+ polyester, vs 33.5% at Alo Yoga. If you specifically want nearly-all-natural garments, Alo Yoga has 19.3% of its catalogue at that level — Nasty Gal sits at 4.4%. The biggest category divergence is dresss — Alo Yoga at 31.2% natural fibre, Nasty Gal at 7.2%.

Verdict

Alo Yoga is the clearer pick on fabric composition — 26.6 percentage points more natural fibre on average than Nasty Gal, with 19.3% of items at the nearly-all-natural mark vs 4.4%. That said, neither brand is "natural-only" — even at Alo Yoga, the majority of items contain some synthetic fibre. Always check the label.

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Frequently Asked Questions

Is Alo Yoga or Nasty Gal better quality fabric?

Based on average natural fibre content, Alo Yoga edges ahead — 34% vs 7.4% per garment across the 680 products we analysed. Higher natural fibre content generally correlates with better breathability, fewer microplastics, and longer wear.

Does Nasty Gal use more polyester than Alo Yoga?

Yes. 80.8% of Nasty Gal products are polyester-heavy (50%+ polyester), compared to 33.5% at Alo Yoga.

How many products did you analyse for Alo Yoga vs Nasty Gal?

477 Alo Yoga products and 203 Nasty Gal products — every item with a parseable fabric composition label from each brand's site.

Which has more 100% natural pieces — Alo Yoga or Nasty Gal?

Alo Yoga. 19.3% of Alo Yoga products are nearly all-natural (95%+ natural fibre by composition) versus 4.4% at Nasty Gal.

What's the most common fibre at Alo Yoga and Nasty Gal?

Elastane is the most common fibre at Alo Yoga (in 67.9% of products), while Polyester leads at Nasty Gal (80.8% of products).

Are Alo Yoga dresss better than Nasty Gal's?

For dresss specifically, Alo Yoga averages 31.2% natural fibre vs Nasty Gal's 7.2%. That's a meaningful gap — if you're shopping that category, Alo Yoga is the safer default.

→ Full Alo Yoga report→ Full Nasty Gal report→ All brands ranked

Related reports.

Alo Yoga Full Report477 products analysedNasty Gal Full Report203 products analysedAll Brand RankingsEvery brand ranked by natural fibre %
Methodology: Fabric composition pulled from product pages on each brand's site. 477 Alo Yoga products, 203 Nasty Gal 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 Alo Yoga and Nasty Gal. Data refreshed monthly.

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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