Free returns & exchanges

Thinking Mu Long organic cotton dress | navy "Navy pannacota contrast doechi dress - blue"

€53 €89 -40%
Size

Choose your size

We recommend you take your usual size.

In the photos, The model wears size S

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, 2,991 reviews
This piece in detail +

Good to know

  • It's all about the back: the contrast-trimmed opening is enough to give the dress character.
  • A thick rib that holds the silhouette and stays opaque, even worn close to the body.
  • A knit made mostly from GOTS-certified organic cotton.

Fabric & feel

Rib is a knit with fine ridges that stretches widthways. Here it's dense, 280 g/m²: it has body and doesn't look like a lengthened vest top. The trade-off: 3% elastane. It helps the rib spring back after being stretched, and lets the dress flatter more body shapes.

When to wear it?

From May to September, on its own, during the day or for dinner on a terrace. Its thick knit also makes it wearable in between seasons, layered under a coat.

Fit & size

Close-fitting but stretchy: the rib follows your movement when you walk or sit.

We recommend you take your usual size.

In the photos, The model wears size S

Care guide

  • MACHINE WASHABLE AT 30 °C MAX. SHORT SPIN
  • DO NOT BLEACH
  • DO NOT TUMBLE DRY
  • IRON INSIDE OUT ON LOW HEAT
  • DO NOT DRY CLEAN
Material 97% organic cotton, 3% elastane
Country of manufacture India
Fit Fitted
Length Midi
Sleeves Sleeveless
Collar Round
Sheerness Opaque
In-store availability +
Lyon 1er
In stock
XS S M L
Paris 10ème
Unavailable
XS S M L
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 28% 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

823 L

90% 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

  • 97% sustainable materials

    97% organic cotton, 3% elastane.

  • Vegan

    No animal-derived materials.

  • GOTS certified

    Certifies at least 95% organic materials (in the product or its organic part) & working conditions in line with the International Labour Organization. The label →

  • 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
★★★★★ ★★★★★
3 verified reviews
5★ 3
4★ 0
3★ 0
2★ 0
1★ 0
·
Anonymous
Verified purchase
October 2026
★★★★★ ★★★★★ Size M · Black

Really comfortable and hugs your curves nicely

Translated from French

LM
Lara M.
Verified purchase
August 2026
★★★★★ ★★★★★ Size S · Black

Pretty, practical dress with a slightly sporty touch from its straps, which are designed like swimsuit straps. For those who want to wear a bra, it shows at the back.

Translated from French

EB
Emie B.
Verified purchase
July 2026
★★★★★ ★★★★★ Size M · Black

Really nice to wear and breathable, very sensual.

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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Long organic cotton dress | navy "Navy pannacota contrast doechi dress - blue", Thinking Mu, photo 1
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Long organic cotton dress | navy "Navy pannacota contrast doechi dress - blue", Thinking Mu, photo 2
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Long organic cotton dress | navy "Navy pannacota contrast doechi dress - blue", Thinking Mu, photo 3
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Long organic cotton dress | navy "Navy pannacota contrast doechi dress - blue", Thinking Mu, photo 4

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