Free returns & exchanges

Thinking Mu Organic cotton dress "black kin dress"

€102 €170 -40%
Colour · Black
Size

Choose your size

Runs slightly small. If you're often between two sizes, take the larger one.

In the photos, Elisabeth is 170 cm tall and wears size XS

Size guide
Size equivalents
Size XS S M L XL
FR equivalent 34 36 38 40 42

Free returns & exchanges · 30 days to send it back to us

At your door Thursday 12/11 · free delivery on orders over €150 Free returns & exchanges · 30 days to send it back to us Loyalty programme · 5% of the amount paid added to your credit Excellent on Trustpilot · 4.8/5, 2,993 reviews
This piece in detail +

Good to know

  • A 100 % organic cotton dress, nothing added: natural from thread to hem.
  • The side cut-outs show just a little skin: the black dress gets a bit less demure.
  • Free arms and volume below the waist: you can sit for hours without anything pulling.

Fabric & feel

A light, supple organic cotton fabric that moves with you at every step. It stays soft on your skin when it's hot and is opaque enough that you can forget the slip. The plain black keeps a sharp look from morning to night.

When to wear it?

From May to September, as soon as it's over 22 °C. A summer day at the office, dinner on a terrace, then your holidays: it handles all of these.

Fit & size

The open sides let air in at the waist when it's muggy. Raise your arms, walk fast, the dress follows without getting in the way.

Runs slightly small. If you're often between two sizes, take the larger one.

In the photos, Elisabeth is 170 cm tall and wears size XS

Care guide

Machine wash at 30°C inside out. Iron on high heat (200°C)
Material 100% organic cotton
Country of manufacture India
Fit Relaxed
Length Midi
Sleeves Sleeveless
Collar Round
Sheerness Opaque
Fabric drape Fluid
In-store availability +
Lyon 1er
Unavailable
XS S M L XL
Paris 10ème
Unavailable
XS S M L XL
Environmental cost +

Calculated using the official French government method (Ecobalyse), across the entire life cycle. The lower the score, the lower the impact.

Official French government logo · Ecobalyse v7 regulatory method.

See calculation details ↗

This garment costs the environment 29% less than a conventional equivalent.

The conventional equivalent is the same garment made from non-organic, non-recycled materials in Asia, as is standard in the industry.

Climate change

5.8 kg CO₂e

6% less

Water used

789 L

91% less

Regulatory environmental labelling · calculated with Ecobalyse.

Delivery & returns +

Delivery costs

Free on orders over €150 in France, Belgium, Monaco, Germany, the Netherlands and Austria. Below that, €3 to a pickup point or €5 for home delivery. See other countries.

Delivery time

Estimated delivery: Thursday 12/11. We do our best to meet this date, but it may still change slightly. Sold and shipped by WeDressFair.

Returns & exchanges

Free returns & exchanges

You have 30 days from receipt to try on your items at home, at your own pace.

Not right for you?

Returns are free: we refund you to your payment method as soon as your parcel has been processed.

Wrong size?

Request another size from your account: the exchange is free, including the return and the new delivery.

How does it work?

In your account, click "Return or exchange", then download your label: there's nothing to pay.

How to make an exchange

Loyalty programme

Every order placed with your account earns you 5% of the amount paid in credit. It's added automatically at the end of the return period, then applied on the payment page of your next order. It never expires. Find out more.

Our commitments for this piece

  • 100% sustainable materials

    100% organic cotton.

  • Vegan

    No animal-derived materials.

  • Verified workshops

    We have checked the documents provided by Thinking Mu about its production workshops and the materials used, against the criteria in our charter.

Our charter & our method

Our method

01

We seek out

We look for brands whose approach actually holds up, not the ones with the best marketing.

02

We analyse

We ask for workshop names, compositions and labels, along with the proof to back them up.

03

We validate

Without proof, a brand doesn't make it into our catalogue. It's the one rule that's non-negotiable.

Our selection charter · 3 pillars

01

Respect for people

  • All brands share the names of their partner workshops with us.
  • All of them commit to respecting the fundamental principles of the International Labour Organization.
  • When they manufacture in high-risk countries, we ask for additional guarantees and labels.
02

Care for the planet

  • 100% of the clothes we select are made from at least 90% organic, vegan, recycled or natural materials.
  • All brands give us proof, with labels and certifications: GOTS, OCS, Oeko-Tex, Bluesign…
03

Integrity and values

  • At least 75% of collections must be eco-friendly.
  • All of them commit to always doing better, never worse just to produce more.
View the full charter ↗

What our customers say

5 / 5
★★★★★ ★★★★★
5 verified reviews
5★ 5
4★ 0
3★ 0
2★ 0
1★ 0
MA
Manon A.
Verified purchase
July 2026
★★★★★ ★★★★★ Size XS · Black

Light, fluid material, really comfortable to wear

Translated from French

MF
Martina F.
Verified purchase
July 2026
★★★★★ ★★★★★ Size M · Black

Really nice fit and very comfortable

Translated from French

SZ
Stéphanie Z.
Verified purchase
July 2026
★★★★★ ★★★★★ Size M · Black

Gorgeous dress! You can wear it for a dressy evening as well as casually

Translated from French

SR
Sophie R.
Verified purchase
July 2026
★★★★★ ★★★★★ Size L · Black

The fit and the material are perfect! The side openings mean you need to find the right compatible bra (or go without), but it's totally doable!

Translated from French

LB
Laurence B.
Verified purchase
June 2026
★★★★★ ★★★★★ Size S · Black

Super light cotton dress!

Translated from French

Thinking Mu

// The brand

Thinking Mu

A pioneer of circular fashion, Thinking Mu turns innovative and recycled fibres into colourful, committed pieces. It guarantees full transparency and a minimal environmental footprint for every garment it makes.

Discover the brand

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Organic cotton dress | black "black kin dress", Thinking Mu, photo 1
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Organic cotton dress | black "black kin dress", Thinking Mu, photo 2
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Organic cotton dress | black "black kin dress", Thinking Mu, photo 3
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Organic cotton dress | black "black kin dress", Thinking Mu, photo 4

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