Strong across the board — well-made, safe to wear, and low planet cost.
↳ Daily wear, no caveats.
Why this material grade?
This product scored 83/100 on the 7-axis material rubric, based on its composition of 56% Tencel, 40% Merino Wool, 4% Elastane. Blended from 56% Tencel, 40% Merino Wool, 4% 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. Tencel (56%) is doing the heavy lifting. This is a smart buy.
Breakdown
Composition
56% Tencel, 40% Merino Wool, 4% Elastane
Mostly natural with stretch
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.
Merino Wool (score 86) is carrying this blend. Spandex (score 55) is pulling it down.
Network
Cost per wear
rough estimateReasonable cost-per-wear
How we got there
Base for this category: 100 expected wears.
× 1.00 for Tencel (mid-durability fiber, durability 69).
= 100 expected wears. $55 ÷ 100 ≈ 55¢/wear.
Missing GSM — this is a category-level estimate, not garment-specific. Expect ±30% variance.
Real life is messier than a formula: how often you wash, how you wash, whether you wear it inside-out, dry on low — all of it shifts the number. This is the ceiling under reasonable care.
Care Guide
Decode symbols →Wash
cold (30°C)
Bleach
Do not bleach
Dry
flat dry
Iron
low
Dry Clean
recommended
Best For
Excellent breathability (82) and moisture wicking (78) for active sports
Excellent comfort (88) and breathability (82) for sleeping
Good warmth (61) for cold weather
Good comfort (88) and care ease (56) for casual wear
Good durability (69) and comfort (88) for office wear
Good breathability (82) and comfort (88) for undergarments
Good moisture wicking (78) and durability (69) for weather protection
Good durability (69) and breathability (82) for outdoor activities
Good sustainability score (80)
Tradeoffs
Health Impact
Microplastic shedding · skin-contact synthetic load · likely chemical treatments
Low health impact — predominantly natural fibers with no major treatment flags.
Very low
4% synthetic
No flags
Biodegradability
Not BiodegradableMaterials will persist in the environment for decades.
Health & environmental impact →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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