Safe to wear, but rough on the environment.
↳ Safe to wear; production isn't clean — donate when done.
Why this material grade?
This product scored 63/100 on the 7-axis material rubric, based on its composition of 50% Merino Wool, 50% Acrylic. Blended from 50% Merino Wool, 50% Acrylic — 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.
Breakdown
Composition
50% Merino Wool, 50% Acrylic
Mixed blend — natural + synthetic
Acrylic sheds more microfibers than any other fabric — up to 730,000 per wash. It's the worst offender for microplastic pollution.
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.
Network
Cost per wear
rough estimateReasonable cost-per-wear
How we got there
Base for Sweaters: 100 expected wears.
× 0.70 for Merino Wool (low-durability fiber, durability 59).
= 70 expected wears. $45 ÷ 70 ≈ 64¢/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
Good warmth (80) for cold weather
Good comfort (64) and care ease (65) for casual wear
Better Alternatives
Higher-rated sweaters products — each card shows how much better this alt scores vs your current product.
Snow Peak
Micro Merino Crewneck Long Sleeve
100% Merino
Aime Leon Dore
Merino Wool Cycling Jersey
100% Merino Wool
Uniqlo
Merino Sweater
100% Merino Wool
J.Crew
Wide-sleeve pointelle crewneck sweater in merino wool
100% Merino
Tradeoffs
Health Impact
Microplastic shedding · skin-contact synthetic load · likely chemical treatments
Moderate health impact — some synthetic content or possible chemical treatments. Rotate with natural-fiber alternatives where you can.
730,000 fibers/wash
50% 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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