FabricIQ
Reading the label…
C
65/100
01Verdict
Safe to wear, but rough on the environment.
Best for Safe to wear; production isn't clean — donate when done.
Material C · 65Health A · 98Eco · 48Label · highMade in Japan
Why this material grade?
This product scored 65/100 on the material-quality rubric (durability, comfort, breathability, warmth, moisture-wicking, care-ease), based on its composition of 95% Cotton, 4% Nylon, 1% Spandex. Sustainability is scored separately as the Eco Rating. Blended from 95% Cotton, 4% Nylon, 1% Spandex — the score is a weighted average based on each material's proportion.
C (55-69): Average material composition — typical blend, reasonable for everyday wear.
Average quality, high synthetic content
Decent for everyday wear, but the synthetic content means microplastic shedding and it won't biodegrade. Consider natural alternatives for your next purchase.
Premium fabric, premium price
$40Better-than-typical fabric, but priced above the category median.
$0.62 per quality point Category median: $20 · grade C
Fabric value only — compares material quality to price vs other socks. Construction, fit, and brand aren't measured.
02Breakdown
Composition
95% Cotton, 4% Nylon, 1% Spandex
Mostly natural with stretch
Fabric details
Made in Japan
Added Apr 6, 2026 · Data last updated Apr 6, 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.
🧺
Dryer heat destroys spandex/elastane over time. Your leggings and stretchy clothes will last 2x longer if you skip the dryer.
03Network
Performance
spec sheet- Assembled in
- Japan
Cost per wear
rough estimate$1.14/wear · 35 expected wears
Reasonable cost-per-wear
How we got there
Base for Socks: 50 expected wears.
× 0.70 for Cotton (low-durability fiber, durability 61).
= 35 expected wears. $40 ÷ 35 ≈ $1.14/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
line dry
Iron
Best For
👕Everyday Casual
ExcellentExcellent comfort (79) and easy care (75) for daily wear
👔Formal/Office
GoodGood durability (61) and comfort (79) for office wear
😴Sleepwear
GoodGood comfort (79) and breathability (82) for sleeping
🩲Underwear
GoodGood breathability (82) and comfort (79) for undergarments
Better Alternatives
Higher-rated socks 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
A98/100
Low health impact — predominantly natural fibers with no major treatment flags.
Microplastics LOW
Very low
Skin contact LOW
5% synthetic
Chemicals LOW
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
