Products
MUJI — Kapok Blend Double Gauze Shirt

MUJI

Kapok Blend Double Gauze Shirt

ShirtsSKU: 4548076943860
C

67/100

Safe to wear, but flimsy build.

Safe basics, but expect to replace it sooner.

Material C · 67Health A · 100Eco · 74Label · moderate

Why this material grade?

This product scored 67/100 on the 7-axis material rubric, based on its composition of 90% Organic Cotton, 10% Kapok.

C (55-69): Average material composition — typical blend, reasonable for everyday wear.

Everyday quality

This fabric does the job for daily wear. Not premium, not bad — it's the middle of the road. Follow care instructions carefully to extend its life.

Breakdown

Composition

90% Organic Cotton, 10% Kapok

All-natural, organic source

🌱

Cotton biodegrades in 1-5 months. When you're done with this, it returns to the earth — not the ocean.

Network

Cost per wear

rough estimate
71¢/wear · 70 expected wears

Reasonable cost-per-wear

How we got there

Base for Shirts: 100 expected wears.

× 0.70 for Organic Cotton (low-durability fiber, durability 54).

= 70 expected wears. $50 ÷ 7071¢/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

Oxygen only

Dry

tumble medium

Iron

medium

P

Dry Clean

avoid

Cycle: normalDetergent: regularSoftener: OK

Best For

👕Everyday Casual
Good

Good comfort (72) and care ease (68) for casual wear

😴Sleepwear
Good

Good comfort (72) and breathability (77) for sleeping

🩲Underwear
Good

Good breathability (77) and comfort (72) for undergarments

🌱Sustainable Fashion
Good

Good sustainability score (74)

Tradeoffs

Health Impact

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

A100/100

Low health impact — predominantly natural fibers with no major treatment flags.

MicroplasticsLOW

Minimal

Skin contactLOW

0% synthetic

ChemicalsLOW

No flags

Eco Rating

74/100

Strong environmental credentials

Learn about eco ratings →

Biodegradability

Biodegradable

Materials will naturally decompose.

Health & environmental impact →

Label Confidence

MODERATE

Label confidence moderate — one signal suggests the composition may be incomplete or under-verified.

  • Organic cotton claim without explicit certification (GOTS, OCS). Check brand's certification disclosures separately.
How fabric labels can mislead — and what to look for →

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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