Free returns & exchanges

Thinking Mu Sleeveless jumper in merino wool | green "Green kaia knitted vest - green"

€130
Size

Choose your size

We recommend you take your usual size.

In the photos, The model is 173 cm tall and 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

  • Pure merino, nothing added: a fine-fibre wool, warm and soft, that doesn't itch like regular wool.
  • Made in Europe, in Spain, close to home.
  • Free arms and a warm torso: it slips under a coat with no extra bulk at the sleeves.

Material & feel

Merino is a wool with a very fine fibre: it stays soft against your neck, even at the edge of the neckline. The textured knit gives the fabric body and holds in the warmth without weighing you down. Merino regulates temperature well: you're warm outside without overheating once indoors.

When to wear it?

From October to April, as a mid-layer under a coat. In mid-season, when a full jumper would be too much. In a heated office, it keeps your torso warm without making your arms sweat.

Fit & size

The straight fit leaves room in the chest: layer up without feeling squeezed. On the short side, it doesn't bunch at the waist when you sit down.

We recommend you take your usual size.

In the photos, The model is 173 cm tall and wears size S.

Care guide

Cold hand wash only. Can be machine washed (wool programme), gentle spin (300-400 rpm). Never tumble dry. Dry flat. Iron at a warm temperature (150°C) with a damp pressing cloth.
Material 100% merino wool
Country of manufacture Spain
Fit Straight
Length Above the hips
Collar Round
Sleeves Sleeveless
In-store availability +
Lyon 1er
In stock
XS S M L XL
Paris 10ème
In stock
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 ↗

Climate change

8.4 kg CO₂e

Water used

3,845 L

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

  • Made in Spain

  • 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
★★★★★ ★★★★★
1 verified reviews
5★ 1
4★ 0
3★ 0
2★ 0
1★ 0
EM
Emma M.
Verified purchase
October 2026
★★★★★ ★★★★★ Size XS · Fir green

Very comfortable, the colour is gorgeous and easy to wear!

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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Sleeveless jumper in merino wool | green "Green kaia knitted vest - green", Thinking Mu, photo 1
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Sleeveless jumper in merino wool | green "Green kaia knitted vest - green", Thinking Mu, photo 2
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Sleeveless jumper in merino wool | green "Green kaia knitted vest - green", Thinking Mu, photo 3
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Sleeveless jumper in merino wool | green "Green kaia knitted vest - green", Thinking Mu, photo 4
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Sleeveless jumper in merino wool | green "Green kaia knitted vest - green", Thinking Mu, photo 5
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Sleeveless jumper in merino wool | green "Green kaia knitted vest - green", Thinking Mu, photo 7
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Sleeveless jumper in merino wool | green "Green kaia knitted vest - green", Thinking Mu, photo 9
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Sleeveless jumper in merino wool | green "Green kaia knitted vest - green", Thinking Mu, photo 10
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Sleeveless jumper in merino wool | green "Green kaia knitted vest - green", Thinking Mu, photo 11

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