Strong across the board — well-made, safe to wear, and low planet cost.
↳ Daily wear, no caveats.
Why this material grade?
This product scored 72/100 on the 7-axis material rubric, based on its composition of 3% Spandex, 80% Organic Cotton, 17% Nylon, 3% Spandex. Blended from 3% Spandex, 80% Organic Cotton, 17% Nylon, 3% Spandex — the score is a weighted average based on each material's proportion.
B (70-84): Good material composition — above average across most axes.
Good quality, eco-friendly
Solid fabric with strong environmental credentials. Spandex (3%) is doing the heavy lifting. This is a smart buy.
Breakdown
Composition
3% Spandex, 80% Organic Cotton, 17% Nylon, 3% Spandex
Mostly natural with stretch
Synthetic fabrics can contain BPA, which mimics estrogen. Studies have found BPA transferring to skin through sweat contact.
This fabric will take 200+ years to decompose. That means a shirt you buy today will still exist in the year 2226.
Dryer heat destroys spandex/elastane over time. Your leggings and stretchy clothes will last 2x longer if you skip the dryer.
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Care Guide
Decode symbols →Wash
cold (30°C)
Bleach
Do not bleach
Dry
line dry
Iron
low
Dry Clean
avoid
Best For
Excellent comfort (77) and easy care (79) for daily wear
Good durability (67) and comfort (77) for office wear
Good comfort (77) and breathability (75) for sleeping
Good breathability (75) and comfort (77) for undergarments
Good durability (67) and breathability (75) for outdoor activities
Good sustainability score (70)
Tradeoffs
Health Impact
Microplastic shedding · skin-contact synthetic load · likely chemical treatments
Low health impact — predominantly natural fibers with no major treatment flags.
500,000 fibers/wash
23% synthetic
No flags
Biodegradability
Not BiodegradableMaterials will persist in the environment for decades.
Health & environmental impact →Label Confidence
MODERATELabel confidence moderate — one signal suggests the composition may be incomplete or under-verified.
- ⚠Organic cotton claim without explicit certification (GOTS, OCS). Check brand's certification disclosures separately.
What this score doesn't measure
- ×Fiber grade. Staple length, micronaire, strength. "100% cotton" could be short-staple upland or long-staple Pima — same label, very different fabric.
- ×Yarn processing. Singles count, ply (single vs two-ply), spinning method (open-end vs ring-spun vs compact), mercerization. Invisible from any label.
- ×Knit / weave structure. Single jersey vs interlock, knit tightness. A loose knit pills; a tight knit lasts.
- ×Fabric weight (GSM). One construction signal among several — and high GSM can come from loose cheap yarn just as easily as from fine tight yarn. We have it for blank manufacturers, rarely for retail.
- ×Pre-shrink processing. Sanforized cotton shrinks ~1%; non-sanforized can shrink up to 10%. Not visible from the composition tag.
- ×Construction quality. Stitch density (SPI), seam types, collar geometry, manufacturing tolerances (AQL). These often matter more than the fiber itself.
- ×Specific chemical loads. Health Impact flags "likely PFAS / possible formaldehyde" from composition × category — we don't lab-test individual SKUs.
We rate the fabric, not the garment. Composition is the floor of what you're guaranteed to be getting — most shoppers don't have that.
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