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$31.00 NZD Regular price$43.00 NZD
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Made with GOTS Organic Cotton

OEKO-TEX® Certified

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Free Shipping Over $120

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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



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  • 5 stars: 404 (87%)
  • 4 stars: 46 (10%)
  • 3 stars: 7 (1%)
  • 2 stars: 8 (2%)
  • 1 star: 2 (0%)
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
Apollo

They are a perfect fit your product is great keep doing what you're doing.

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Apollo

They are great

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Anonymous

Not as comfortable as the brief but still nice.

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Anonymous

So comfortable.

K
Klint

Nice and soft
Arrived within a week

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Anonymous

Just purchased my first pair of Stone.Kin underwear.
Love the fit and fabric, will purchase again for sure.

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Anonymous

Comfortable

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Anonymous

My teen loves these. Very soft. Will order more when medium is back in stock.

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Anonymous

Most comfy I’ve tried

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Sam

Fit great, very chic, very comfortable

G
GEOFFREY

Fit perfectly and feel comfortable

R
Rob

Love the colour, fit and feel of these so much. New fave underwear!

R
Rob

Love the colour, fit and feel of these so much. New fave underwear!

R
Rob

Love the colour, fit and feel of these so much. New fave underwear!

R
Rob

Love the colour, fit and feel of these so much. New fave underwear!

m
matthew

Fantastic material and great fit

m
matthew

Fantasic material and fit

R
Rob

super comfy

R
Rob

True to size, super soft fabric and they wear well.

A
Anonymous

Excellent undies !!!

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Anonymous

Comfortable

M
Mads

They are just the softest most comtable underwear out there , just love them.

M
Michael

I’ve only worn Stone.kin or previously Stonemen for nearly 20 years. Wouldn’t dream of buying anything. Great designs great feel great fit.

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Anonymous

Great for and good colour combination - fits true to size also

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Anonymous

Feels great, fits well true to size

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Anonymous

Feels great fits well true to size

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A.S.

Always beautiful, always good quality. I buy these for my hubby - the last lot I purchased lasted seven years of continuous use!!

D
Devin

Love the colours and feel.

H
Hayden

Great feel and right size

H
Hayden

Great feel and right size

A
Andy

I bought one pair to try out for running as I've always been a loose fit boxers guy then I ordered four more as I enjoyed wearing them through out the day.

J
Jonah

The quality is great! I'm very happy with them

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Anonymous

Great fabric, very comfortable and breathable