Products
nanamica — Button Down Stripe Wind Shirt

nanamica

Button Down Stripe Wind Shirt

JacketsSKU: S26SG080U
C

61/100

Well-made, but plastic on skin.

Outerwear or layers — not for direct skin contact.

Material C · 61Health F · 32Eco · 34Label · highFit · relaxed

Why this material grade?

This product scored 61/100 on the 7-axis material rubric, based on its composition of 55% Nylon, 45% Cotton. Blended from 55% Nylon, 45% Cotton — 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

55% Nylon, 45% Cotton

Mixed blend — natural + synthetic

⚠️

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.

🏭

The fashion industry produces 10% of global carbon emissions — more than aviation and shipping combined.

Network

Performance

spec sheet
Construction
Oxford

Basket-style weave — classic shirting

Fit
Relaxed

Cost per wear

rough estimate
$1.25/wear · 200 expected wears

Reasonable cost-per-wear

How we got there

Base for Jackets: 200 expected wears.

× 1.00 for Nylon (mid-durability fiber, durability 77).

= 200 expected wears. $250 ÷ 200$1.25/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.

40°

Wash

warm (40°C)

Bleach

Do not bleach

Dry

tumble low

Iron

low

P

Dry Clean

avoid

Cycle: normalDetergent: regularSoftener: No

Best For

👕Everyday Casual
Good

Good comfort (64) and care ease (81) for casual wear

👔Formal/Office
Good

Good durability (77) and comfort (64) for office wear

⛰️Outdoor/Hiking
Good

Good durability (77) and breathability (58) for outdoor activities

Tradeoffs

Health Impact

Microplastic shedding · skin-contact synthetic load · likely chemical treatments

F32/100

High health impact — significant synthetic content or likely chemical treatments. For frequent skin-contact wear, consider a natural-fiber alternative.

MicroplasticsHIGH

500,000 fibers/wash

Skin contactMODERATE

55% synthetic

ChemicalsHIGH

PFAS

  • PFAS (likely): 55% synthetic outerwear is typically treated with PFAS-based DWR (durable water repellent) for water resistance.
🌿 Find plastic-free alternatives →How we score health impact →Not medical advice — based on material composition.

Eco Rating

34/100

High environmental impact

Learn about eco ratings →

Biodegradability

Not Biodegradable

Materials 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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