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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Men's Brief in Organic Cotton Rib - Tar / Sand model showcasing a clean fit and breathable comfort.
Men's Brief in Organic Cotton Rib - Tar / Sand model showcasing the clean fit and soft fabric, highlighting natural comfort and style.
Men's Brief in Organic Cotton Rib - Tar / Sand modeled by a man sitting on a stool, showcasing comfort and design.
Men's Brief in Organic Cotton Rib - Tar / Sand modeled by a man standing in a neutral background.

Brief in Organic Cotton Rib - Tar / Sand

Sale price$35.00 AUD
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Bone Lines Bone Brown Camel Camel Brown Tar Teal Sage Pandanus Lake Indigo Indigo Lake Brown Camel Camel Camel Forest Stone
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Made with GOTS Organic Cotton

OEKO-TEX® Certified

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Free Shipping Over $120

Easy Returns

Men's Brief in Organic Cotton Rib - Tar / Sand is a tailored, everyday brief designed for a clean fit and lasting comfort. The body is made from GOTS-certified organic cotton rib in Tar, with a small amount of elastane added for natural stretch and shape retention. The rib knit keeps the fabric breathable and soft against the skin while allowing it to move with you throughout the day.

The leg openings are finished with cotton binding to create a smooth, secure edge that stays in place without digging or rolling. The waistband is made from rich cotton for a stable, comfortable hold, and is finished with a minimal stone.kin logo understated and intentional, without loud branding.

Men's Brief in Organic Cotton Rib - Tar / Sand offers full coverage with a refined, supportive silhouette. It’s structured enough to feel held, but soft enough for all-day wear. The organic cotton is naturally breathable and gentle on skin, making it suitable for long hours, warm weather, and sensitive areas. It wears comfortably under everyday clothing without bulk or friction.

Tar is a deep, grounded neutral with a Sand waistband to soften the contrast. It’s a colourway that feels simple, confident, and easy to wear.

No synthetics, no toxins.

Just organic cotton, a considered cut, and a fit that feels right from the first wear.

       

Fast & Free Shipping on Orders over $120 to Australia, NZ , UK. US Orders over $150 (with duty and tax covered)

  • 5 stars: 344 (86%)
  • 4 stars: 39 (10%)
  • 3 stars: 5 (1%)
  • 2 stars: 8 (2%)
  • 1 star: 2 (1%)
Some of the reviews shown are from related products the merchant grouped with this one.
A
Anonymous

So comfy.

M
Michael

Ordered one Trunk and one Boxer, both in size S. Instead, I only received the Trunk in a size M, and the Boxer was completely missing. I contacted customer service twice, once via email and once through their website contact form, and waited a full week with zero response. Just complete silence. I’m extremely disappointed, as this was my second order and I was planning on buying more because I liked the product. But given this terrible service, it will be my last. Never again!

M
Michael

Ordered one Trunk and one Boxer, both in size S. Instead, I only received the Trunk in a size M, and the Boxer was completely missing. I contacted customer service twice, once via email and once through their website contact form, and waited a full week with zero response. Just complete silence. I’m extremely disappointed, as this was my second order and I was planning on buying more because I liked the product. But given this terrible service, it will be my last. Never again!

A
Anonymous

So comfortable - the best undies!

T
Thomas

So comfy and stylish!

T
Thomas

So comfy and stylish!

T
Thomas

So comfy and stylish!

J
Jack

Elite Organic Cotton, super comfy!

F
Francois

Boyfriend is hot amd comfortable in them!

F
Francois

Love them, the fit is on point!! Wish there were more coulours

F
Francois

Love the fit and how the feel is so light!

Would love more coulour.

I
Ian

I wanted just to feel a calm grounded kinda hotness when all I’m wearing is my jocks.. not the in your face synthetic sexy that most brands shove in my face. I’ve got the xl men’s brief. Snug but not tight, soft but not slinky. Comfy but not frumpy. Balanced.

a
antonio

the moment i unpacked my new underwear i was in love. soft, breathable, classic and feels like butter on my skin. my toosh adores them! coming back for more without a doubt, i only want stone kins.

A
Anonymous

Great colour

J
Jenny

Great colours and beautiful fabric

A
Aaron

Love em!!

G
Grace

Got these as a gift for my partner and he won't stop talking about how comfortable they are!

J
Jacob

Comfortable, good look, nice material.

The only issue is the legs aren’t as long as they look in the photo

J
Jeremy

Very happy with this product, great option for low-tox underwear because of their certifications and they are unbelievably comfy. They do ride up a little (boxer briefs) But not enough to make them not worth it. Very happy.

M
Michael

This is one of the best trunks ive ever worn. Perfect fit, quality is high

M
Michael

Great qualty and fits perfect already ordered more of these

C
Chris

Very comfortable (noticeably more comfortable than other brands).

J
Jenae

Finally a pair of undies for my boyfriend that tick all of the boxes. They look and feel amazing and are extremely comfortable. Going to order 10 more now!

P
P.

Amazing boxers! the size and fit are perfect, soft, great quality organic cotton, it doesn't get better than this!

A
Anonymous

Great fit and comfortable

E
Ethan

Fast Shipping and Super Comfy!

E
Ethan

Fast shipping and super comfy!

A
Anonymous

So comfortable, been looking for something since Hamilton and hare went bust. This fits the bill!

E
Eric

My new favorite briefs! They feel like a cozy sock. The waist doesn’t gather either. I love them!! Oh and they look great on!

A
Anonymous

Perfect 👌 feel and fit

m
michael

I love them! They are true to size, so I’m a 32” waist and bought the M. Also, I like the fact that the branding is small and not covering the entire waistband. Definitely will be buying more.