FabricIQ
Reading the label…
B
71/100
01Verdict
Safe to wear, but rough on the environment.
Best for Safe to wear; production isn't clean — donate when done.
Material B · 71Health B · 73Eco · 50Label · high
Why this material grade?
This product scored 71/100 on the material-quality rubric (durability, comfort, breathability, warmth, moisture-wicking, care-ease), based on its composition of 55% Merino Wool, 40% Polyester, 5% Spandex. Sustainability is scored separately as the Eco Rating. Blended from 55% Merino Wool, 40% Polyester, 5% 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
Well-balanced fabric that should serve you well. The natural-synthetic blend offers durability with comfort. Follow the care guide to maximize lifespan.
Great fabric value
$40Better-than-typical fabric for this category, at a below-median price.
$0.56 per quality pointCategory median: $148 · grade C
Fabric value only — compares material quality to price vs other pants. Construction, fit, and brand aren't measured.
02Breakdown
Composition
55% Merino Wool, 40% Polyester, 5% Spandex
Mostly natural with stretch
Fabric details
Bonded
Care (from the label)
Machine washableLine dryIron lowDo not bleachDry clean OK
Added Jun 7, 2026 · Data last updated Jun 7, 2026
Sustainability is scored separately — see the Eco Rating below.
🔬
Every wash of synthetic fabric releases up to 700,000 microplastic fibers into waterways. Use a Guppyfriend bag to catch them.
🌍
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.
03Network
Cost per wear
rough estimate20¢/wear · 200 expected wears
Strong cost-per-wear
How we got there
Base for Pants: 200 expected wears.
× 1.00 for Merino Wool (mid-durability fiber, durability 77).
= 200 expected wears. $40 ÷ 200 ≈ 20¢/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 symbolsWash
cold (30°C)
Bleach
Do not bleach
Dry
flat dry
Iron
Best For
👔Formal/Office
ExcellentExcellent durability (77) and comfort (70) for office wear
🏃Athletic Wear
GoodGood breathability (60) and moisture wicking (74) for light activity
🧥Winter Outerwear
GoodGood warmth (67) for cold weather
👕Everyday Casual
GoodGood comfort (70) and care ease (67) for casual wear
😴Sleepwear
GoodGood comfort (70) and breathability (60) for sleeping
🌧️Rain/Weather
GoodGood moisture wicking (74) and durability (77) for weather protection
Better Alternatives
Higher-rated pants products — each card shows how much better this alt scores vs your current product.
04Tradeoffs
Health Impact
Microplastic shedding · skin-contact synthetic load · likely chemical treatments
B73/100
Moderate health impact — some synthetic content or possible chemical treatments. Rotate with natural-fiber alternatives where you can.
MicroplasticsMEDIUM
700,000 fibers/wash
Skin contactMODERATE
45% synthetic
ChemicalsLOW
Antimony
- Antimony (trace): Virgin polyester contains trace antimony from PET production. Recycled polyester reduces but does not eliminate it.
Biodegradability
Not BiodegradableMaterials will persist in the environment for decades.
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.
05Action
