FabricIQ
Reading the label…
Ridge Merino
Women's Aspect Quarter Zip Midweight Merino Wool Long Sleeve Shirt
ShirtsSKU 21007-BLK-XS
B
82/100
01Verdict
Safe to wear, but rough on the environment.
Best for Safe to wear; production isn't clean — donate when done.
Material B · 82Health A · 95Eco · 66Label · high180 gsm
Why this material grade?
This product scored 82/100 on the material-quality rubric (durability, comfort, breathability, warmth, moisture-wicking, care-ease), based on its composition of 84% Merino Wool, 16% Nylon. Sustainability is scored separately as the Eco Rating. Blended from 84% Merino Wool, 16% Nylon — 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
$85Better-than-typical fabric for this category, at a below-median price.
$1.04 per quality pointCategory median: $100 · grade C
Fabric value only — compares material quality to price vs other shirts. Construction, fit, and brand aren't measured.
02Breakdown
Composition
84% Merino Wool, 16% Nylon
Mixed blend — natural + synthetic
Fabric details
180 g/m²
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.
⚠️
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.
🐑
Wool is naturally antibacterial and self-cleaning. You can air it out between wears instead of washing — it'll stay fresh.
03Network
Performance
spec sheet- Fabric weight
- 180 g/m²
Heavy-tee weight
Cost per wear
estimated85¢/wear · 100 expected wears
Reasonable cost-per-wear
How we got there
Base for Shirts: 100 expected wears.
× 1.00 for 180 g/m² (heavy-tee weight).
× 1.00 for Merino Wool (mid-durability fiber, durability 75).
= 100 expected wears. $85 ÷ 100 ≈ 85¢/wear.
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
🧥Winter Outerwear
ExcellentExcellent warmth (81) and durability (75) for cold weather
👔Formal/Office
ExcellentExcellent durability (75) and comfort (82) for office wear
🌧️Rain/Weather
ExcellentExcellent moisture wicking (84) and durability (75) for wet conditions
🏃Athletic Wear
GoodGood breathability (77) and moisture wicking (84) for light activity
👕Everyday Casual
GoodGood comfort (82) and care ease (56) for casual wear
😴Sleepwear
GoodGood comfort (82) and breathability (77) for sleeping
Better Alternatives
Higher-rated shirts 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
A95/100
Low health impact — predominantly natural fibers with no major treatment flags.
MicroplasticsLOW
Very low
Skin contactLOW
16% synthetic
ChemicalsLOW
No flags
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
