Free returns & exchanges

Organic Basics Organic cotton thong "core thong grey melange"

€10 €14 -30%
Colour · Heather grey
Size

Choose your size

Runs small. Take one size up from your usual size.

In the photos, The model is 175 cm tall and wears size L

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

  • GOTS-certified organic cotton, against your skin where it matters most.
  • A thong you'll forget you're wearing: no knicker lines under close-fitting clothes.
  • An elasticated waistband that stays up on its own, with no thick band or fastening.

Fabric & feel

Single jersey is a fine, supple knit, smooth on the skin side: soft to the touch and breathable to wear. The trade-off: 5% elastane. It keeps the thong in place all day and helps it regain its shape after every wear. It also adapts it to more body shapes. The whole thing is vegan, PETA-certified.

When to wear it?

On hot days, when you want cotton rather than a fabric that clings. And whenever you wear fitted or flowing clothes, for a smooth silhouette.

Fit & size

The elasticated waistband follows your body when you sit, bend or walk for a long time, without digging into your skin.

Runs small. Take one size up from your usual size.

In the photos, The model is 175 cm tall and wears size L

Care guide

Machine wash at 30°C inside out, delicates cycle, do not tumble dry. Make sure the spin is set to 800 rpm maximum. Iron on low heat (110°C). Try a GuppyFriend Bag to protect synthetic fibres and reduce the amount of microfibres released into the washing water.
Material 95% organic cotton, 5% elastane
Country of manufacture Egypt
Rise Low-rise
Coverage Low-cut
Sheerness Opaque
In-store availability +
Lyon 1er
Unavailable
XXS XS S M L XL XXL
Paris 10ème
Unavailable
XXS XS S M L XL XXL
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

  • 95% sustainable materials

    95% organic cotton, 5% elastane.

  • Vegan

    No animal-derived materials, PETA-approved.

  • 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 Organic Basics 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

4.5 / 5
★★★★★ ★★★★★
27 verified reviews
5★ 21
4★ 1
3★ 4
2★ 0
1★ 1

Review summarybased on 27 reviews

Loved for its comfort, softness and discretion, this basic is ideal for everyday wear. Careful: it comes up small, so choose one size up. While the fabric is good quality, feedback on how well the seams last after several washes is mixed.

Translated from French

Automatic summary of verified reviews. May contain inaccuracies.

CP
Cécile P.
Verified purchase
February 2026
★★★★★ ★★★★★ Size S · Black

I'm thinking of using it for sport, it seems comfortable

Translated from French

AL
Ana L.
Verified purchase
January 2026
★★★★★ ★★★★★ Size L · Black

Super comfortable and pretty thong. I always size up for extra comfort

Translated from French

MR
Maéva R.
Verified purchase
December 2025
★★★★★ ★★★★★ Size M · Heather grey

Really nice to wear! And you can hardly see the seam, I recommend.

Translated from French

MR
Maéva R.
Verified purchase
December 2025
★★★★★ ★★★★★ Size M · Black

Really nice to wear! And you can hardly see the seam, I recommend.

Translated from French

EG
Elise G.
Verified purchase
October 2025
★★★★★ ★★★★★ Size L · Heather grey

Soft, nice and discreet: I love it!

Translated from French

AL
Ana L.
Verified purchase
October 2025
★★★★★ ★★★★★ Size L · Heather grey

Super comfy! I hardly wear anything but these! I take an L even though I'm more of an M, to be really comfortable. Highly recommend!

Translated from French

27 verified reviews

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Organic Basics

// The brand

Organic Basics

A go-to for sustainable basics, the Danish brand uses only organic, recycled or regenerated fibres (Tencel™) for its underwear and clothing. Organic Basics puts transparency and ethics at the heart of its model, with certified, responsible European production.

Discover the brand

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