Stone.kin – Organic Cotton Underwear Made for Comfort, Safety & Everyday Ritual

Organic cotton underwear buttery soft comfort. Our naturally nude essentials are crafted with the Earth in mind.

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Trunk in Organic Cotton Rib - Sand with Tar Cross

Sale price$35.00 AUD
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Made with GOTS Organic Cotton

OEKO-TEX® Certified

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The Trunk in Organic Cotton Rib Men's Sand with Tar Cross is crafted for those who value simplicity, softness, and structure. Cut in a modern European silhouette, it’s made from GOTS-certified organic melange rib cotton naturally breathable, buttery soft, and kind to your skin. A hint of elastane adds flexibility and shape retention, ensuring the trunk moves with you effortlessly.

Finished with cotton leg binding for a smooth hold and a rich cotton waistband featuring the minimal stone.kin logo, this piece embodies refined comfort. The Sand with Tar Cross hue reflects Stone.kin’s connection to nature earthy, understated, and timeless.

Every Trunk in Organic Cotton Rib Men's – Sand with Tar Cross is crafted consciously: non-toxic, plastic-free, and made to last. Designed to feel like a second skin while keeping its form wash after wash.

At Stone.kin, we believe comfort is the foundation of confidence. This trunk delivers both blending modern design with the softness of organic cotton, so you can move, rest, and live with ease.

Key Features

  • GOTS-certified organic cotton melange rib
  • Naturally soft, breathable, and durable
  • Modern European trunk cut
  • Cotton leg binding and waistband
  • Minimal stone.kin logo
  • Colour: Sand with Tar Cross



  • 5 stars: 415 (87%)
  • 4 stars: 42 (9%)
  • 3 stars: 5 (1%)
  • 2 stars: 8 (2%)
  • 1 star: 7 (1%)
This product has no reviews of its own. The merchant grouped it with related products, so the reviews shown are from across that group.
A
Anonymous

Not just another pair of underwear. I was amazed at the softness of the fabric yet it didn't lack shape or support. Love colour range, one of the big selling points for me.

A
Anonymous

Not just another pair of underwear. I was surprised at how soft the fabric is yet not lacking form or support. Top end of comfotable

B
Bartow

Hreat

M
Marc

Great quality and feels lovely on the skin - high recommend!

D
Dennis

nus 2 Nummern kleiner Bestellen!! aber Qualität Top! Frontoptik könnte schäler sein!!!

K
Killian

Very comfortable organic cotton that gets softer after washing. The best!

K
Khadi

The kids bought these for their dad for Father’s Day! He said they’re the best boxers he’s ever had.

A
Anonymous

Great briefs comfortable and a great fit!

B
Ben

Super comfortable! Definitley buying more.

R
Richard

Great fitting and perfect for sleeping. Consistent fit and quality fabric bring me back. Kudos to you, Stone.kin!

R
Richard

Same quality product from awhile back. Consistency in fit and excellent fabric bring me back….kudos!

A
A

The men’s briefs are incredibly comfortable. The waistband is soft and stays in place without digging in or feeling restrictive. They’ve really struck the perfect balance between support and comfort with the pouch design. It provides just the right amount of room and natural support without being overly engineered like some anatomical pouch briefs that squeeze everything from the sides, or traditional Y-front briefs that flatten everything against your body. The leg openings are equally comfortable and don’t dig in or chafe. Overall, these are some of the most comfortable and well-designed briefs I’ve worn.

K
Kath

super comfy and great quality

A
Anonymous

Very soft and very comfortable love the cut

A
Anonymous

Very soft and very comfortable

D
Daniel

I’m glad I waited a while to write a review. Upon first wearing them, I was pretty disappointed. The size small that I ordered seemed too big. I couldn’t believe they were the smallest size. But after wearing a couple times, I grew to absolutely love them. They didn’t lose their shape by the end of the day the way some can, and are incredibly soft and comfortable. Now I can’t believe I was wearing such tight undies for so long. I had no idea what I was missing.

A
Anonymous

Super comfortable

e
elliott

Took weeks to get it and yet still worth the wait

Hi Elliott,

Thanks so much for your patience! International shipping times can vary depending on the destination and local postal services. We really appreciate your understanding and patience.

Kind regards,
Stonekin Team

G
Greg

Awesome and really comfortable

A
Anonymous

Great material with the right amount of length. Will be my go to boxer briefs

D
Diego

Excellent pair. So soft on the skin 👍🏻

T
T

Great aesthetic, and pretty comfortable! The colors and fabric texture are super cool!

T
T

Great aesthetic, and pretty comfortable! The colors and fabric texture are super cool!

T
T

Great aesthetic, and pretty comfortable! The colors and fabric texture are super cool!

K
Kevin

A bit less fabric than expected. Would prefer someone of a rugby build as well in photos as those of us with bigger thighs need a better representation.

K
Kenny

The best quality and comfort by far.

A
Anonymous

Amazing underwear

A
Anonymous

Excellent underwear. Super comfortable.

S
Sanjit

never received

Hi there,

We’re so sorry to hear you haven’t received your order. Could you please reach out to our team via our direct email address so we can look into this for you and help resolve the issue?

Kind regards,
Stonekin Team

B
Blayne

Softest most comfortable underwear. My wife is conscious of the materials we wear. Will definitely be getting more Stone.kin and I imagine these will be the only brand we wear

D
Dave

I now nearly have a pair for each day of the week - that's the goal: every colour combination there is. But the next step is to buy my woman a voucher ❤️