FabricIQ
Reading the label…
01Verdict
Well-made, but plastic on skin.
Best for Not recommended for socks — synthetic on skin, all day, all night.
Material B · 79Health D · 47Eco · 62Label · high145 gsm
Why this material grade?
This product scored 79/100 on the material-quality rubric (durability, comfort, breathability, warmth, moisture-wicking, care-ease), based on its composition of 78% Merino Wool, 15% Spandex, 4% Nylon, 3% Polyester. Sustainability is scored separately as the Eco Rating. Blended from 78% Merino Wool, 15% Spandex, 4% Nylon, 3% Polyester — 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
$15Better-than-typical fabric for this category, at a below-median price.
$0.19 per quality pointCategory median: $23 · grade C
Fabric value only — compares material quality to price vs other socks. Construction, fit, and brand aren't measured.
02Breakdown
Composition
78% Merino Wool, 15% Spandex, 4% Nylon, 3% Polyester
Mostly natural with stretch
Fabric details
Terry construction · 145 g/m²
Likely chemical finishes
⚠ Easy-care resin · formaldehyde⚠ Antimicrobial biocide · biocide
Stated on the product page — not lab-tested. Not medical advice.
Care (from the label)
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
Performance
spec sheet- Fabric weight
- 145 g/m²
- Construction
- Terry
Mid-weight
Cost per wear
estimated35¢/wear · 43 expected wears
Strong cost-per-wear
How we got there
Base for Socks: 50 expected wears.
× 0.85 for 145 g/m² (mid-weight).
× 1.00 for Merino Wool (mid-durability fiber, durability 71).
= 43 expected wears. $15 ÷ 43 ≈ 35¢/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
👔Formal/Office
ExcellentExcellent durability (71) and comfort (82) for office wear
🏃Athletic Wear
GoodGood breathability (72) and moisture wicking (80) for light activity
🧥Winter Outerwear
GoodGood warmth (77) for cold weather
👕Everyday Casual
GoodGood comfort (82) and care ease (56) for casual wear
😴Sleepwear
GoodGood comfort (82) and breathability (72) for sleeping
🩲Underwear
GoodGood breathability (72) and comfort (82) 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
D47/100
High health impact — significant synthetic content or likely chemical treatments. For frequent skin-contact wear, consider a natural-fiber alternative.
MicroplasticsMEDIUM
200,000 fibers/wash
Skin contactMODERATE
22% synthetic
ChemicalsHIGH
Formaldehyde, Biocide
- Formaldehyde (likely): "Easy-care resin" stated on the product page — observed, not inferred.
- Biocide (likely): "Antimicrobial biocide" stated on the product page — observed, not inferred.
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
