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 75/100 on the material-quality rubric (durability, comfort, breathability, warmth, moisture-wicking, care-ease), based on its composition of 100% Silk. Sustainability is scored separately as the Eco Rating.
B (70-84): Good material composition — above average across most axes.
Good quality
Well-balanced fabric that should serve you well. Follow the care guide to maximize lifespan.
Premium fabric, premium price
$398Better-than-typical fabric, but priced above the category median.
Fabric value only — compares material quality to price vs other jackets. Construction, fit, and brand aren't measured.
Breakdown
Composition
100% Silk
All-natural fiber
Added Jun 4, 2026 · Data last updated Jun 4, 2026
Sustainability is scored separately — see the Eco Rating below.
Never wring silk. The fibers break when twisted. Gently press between towels and lay flat to dry.
Network
Cost per wear
rough estimateInvestment piece — wear it
How we got there
Base for Jackets: 200 expected wears.
× 0.70 for Silk (low-durability fiber, durability 45).
= 140 expected wears. $398 ÷ 140 ≈ $2.84/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
hand wash (30°C)
Bleach
Do not bleach
Dry
flat dry
Iron
low
Dry Clean
recommended
Best For
Excellent comfort (95) and breathability (80) for sleeping
Good breathability (80) and moisture wicking (60) for light activity
Good breathability (80) and comfort (95) for undergarments
Good sustainability score (60)
Better Alternatives
Higher-rated jackets products — each card shows how much better this alt scores vs your current product.
Icebreaker
Men's Merino 260 Quantum Long Sleeve Zip Hoodie
100% Merino Wool
Icebreaker
Women's Merino 260 Quantum Long Sleeve Zip
100% Merino Wool
Icebreaker
Women's 150 MerinoFine™ Ace Long Sleeve Zip Hoodie UPF
100% Merino
Icebreaker
Men's 150 MerinoFine™ Ace Long Sleeve Zip Hoodie UPF
100% Merino Wool
Tradeoffs
Health Impact
Microplastic shedding · skin-contact synthetic load · likely chemical treatments
Low health impact — predominantly natural fibers with no major treatment flags.
Minimal
0% synthetic
No flags
Label Confidence
LOWLabel confidence low — multiple signals suggest the composition may be incomplete, vague, or hard to verify. Treat scores as directional.
- ⚠"100% Silk" claim on a jackets item is unusual — outerwear typically has synthetic linings, padding, or DWR coatings that should be disclosed.
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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