Pinatubo Briefs
Pinatubo Briefs
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95% MicroModal, Stay Flat Waistband, Deep Pouch
📦 Orders ship within 1-2 business days
The Details
The Details
The Pinatubo Brief with a horizontal fly, with an extra roomy pouch, is the Brief you were looking for.
An extra-deep front pouch with a super slick horizontal fly, that was engineered for easy access and excellent comfort, will keep you supported without fuss.
Form-fitting ultra-premium MicroModal fabric holds you softly and leaves you feeling fresh all day.
Wide and ultra-smooth waistband won't flip or mark your skin.
40% less material between the legs.
52 Wash Guarantee. Because we can.
1st Order Fit Guarantee
1st Order Fit Guarantee
Our number one goal is that you're happy with your purchase.
If something doesn't fit right on your regular priced Krakatoa, let us know and we will work with you to make it right.
They are usually a bit more snug when brand-new, so give it a wear and a wash to reach their final shape.
If you purchase multiple pairs, make sure you ONLY TRY ON ONE PAIR and make sure it's perfect on you.
Beyond the first pair, all underwear must be unworn, unwashed, in the original condition and packaging that you received them for an exchange or refund.
52 Wash Guarantee
52 Wash Guarantee
We've built a tough product with advanced stitching, and the very best materials we could get our hands on.
That said, you should follow the care instructions: wash it cold and dry in medium temperatures with similar soft fabrics, for best results and durability.
We provide a 52 Wash Guarantee which is triggered by either 52 washes or 12 months from the date of purchase. If your item has any structural damage before 52 washes or 12 months, we'll replace them for just the cost of shipping.
Free US Shipping on Orders $75+
Free US Shipping on Orders $75+
We provide free basic shipping for all orders over $75 in the United States.
![Pinatubo Briefs](http://krakatoaunderwear.com/cdn/shop/files/PT-BRF-ALW.jpg?v=1714109510&width=1445)
![Pinatubo Briefs](http://krakatoaunderwear.com/cdn/shop/files/PT-BRF-ALW_BACK.jpg?v=1714109510&width=1445)
![Pinatubo Briefs](http://krakatoaunderwear.com/cdn/shop/files/PT-BRF-LZB.jpg?v=1714109510&width=1445)
![Pinatubo Briefs](http://krakatoaunderwear.com/cdn/shop/files/PT-BRF-LZB_BACK.jpg?v=1714109510&width=1445)
![Pinatubo Briefs](http://krakatoaunderwear.com/cdn/shop/files/PT-BRF-JTB.jpg?v=1714109510&width=1445)
![Pinatubo Briefs](http://krakatoaunderwear.com/cdn/shop/files/PT-BRF-JTB_BACK.jpg?v=1714109510&width=1445)
![Pinatubo Briefs](http://krakatoaunderwear.com/cdn/shop/files/PT-BRF-SGN_4cd25b83-b472-4e15-9ecb-50aa2e811ee1.jpg?v=1714109510&width=1445)
![Pinatubo Briefs](http://krakatoaunderwear.com/cdn/shop/files/PT-BRF-SGN_BACK_1b4b5cf6-4ceb-4aa3-a35c-32ea71b0b982.jpg?v=1714109510&width=1445)
![Pinatubo Briefs](http://krakatoaunderwear.com/cdn/shop/files/PT-BRF-RPR_4d48689b-98c2-4695-83c5-22948bbdd0e7.jpg?v=1714109510&width=1445)
![Pinatubo Briefs](http://krakatoaunderwear.com/cdn/shop/files/PT-BRF-RPR_BACK_05228dc9-ab6d-4ca7-b3f3-daed5d5fb304.jpg?v=1714109510&width=1445)
![Pinatubo Briefs](http://krakatoaunderwear.com/cdn/shop/files/PT-BRF-IBL_2972a9ae-d163-4174-b4d0-74e1407602ff.jpg?v=1714109510&width=1445)
![Pinatubo Briefs](http://krakatoaunderwear.com/cdn/shop/files/PT-BRF-IBL_BACK_ea46e903-bfa8-4197-9e81-7210a72048cc.jpg?v=1714109510&width=1445)
![Pinatubo Briefs](http://krakatoaunderwear.com/cdn/shop/files/BriefsWITHFLY_Feature_Front.jpg?v=1714109510&width=1445)
![Pinatubo Briefs](http://krakatoaunderwear.com/cdn/shop/files/BriefsWITHFLY_Feature_Side.jpg?v=1714109510&width=1445)
![Pinatubo Briefs](http://krakatoaunderwear.com/cdn/shop/files/Briefs_Feature_Narrow_d8abf61b-5ebb-472f-9996-1da3eb90f28b.jpg?v=1714109510&width=1445)
Find your size
You'll need a a pair of your existing underwear, a flat surface, and a measuring tape.
I'm Alex, I made these for you.
Every little detail was obsessively fine-tuned, to deliver you an underwear experience like no other:
THE FEATURES YOU ASKED FOR
![](http://krakatoaunderwear.com/cdn/shop/files/VesuviusBRFPouch.jpg?v=1723184270&width=2800)
A POUCH FOR THE AGES
Roomy and Accessible
Your go-to Brief for daily adventures now has a fly!
With a larger 4" deep dual-ply pouch, and a handy horizontal fly, they are perfect for the gym, for when you're feeling frisky, and for any time you need quick access to the goods -while looking great in the process.
With a low hang and a lot of capacity, the pouch on the Pinatubo Brief is the perfect combination of form and function -with style.
![](http://krakatoaunderwear.com/cdn/shop/files/Briefs_Feature_Narrow_d8abf61b-5ebb-472f-9996-1da3eb90f28b.jpg?v=1714109510&width=2800)
SMALL DETAILS, BIG RESULTS
We Obsess With Your Comfort
The narrower bridge connection between the pouch and the back allows you to breathe much more effectively, and reduces bunch-ups between your legs.
![](http://krakatoaunderwear.com/cdn/shop/files/FabricMacroComparosSQUARED.jpg?v=1722927712&width=2800)
THE FINEST MICROMODAL FABRIC
Exceptional Softness and Breathability.
No synthetics here -and no PFAS.
Feel softness like never before with an ultra-premium, hand selected 95% MicroModal fabric. We source only the best MicroModal because comfort is our #1 goal. (Learn about MicroModal). We just add 5% of Spandex to allow for it to move with you.
We never skimp on the quality of our fabrics and materials, neither on the craftsmanship. These products go on your softest, most sensitive parts. We won't settle for anything less than the very best.
WHICH BRIEF IS BEST FOR ME?
Each Krakatoa Collection comes with a specific pouch and hem.
While they all share the same absurdly soft fabric and unflippable waistband, their pouches and hems is what set them apart.
Here is a quick guide:
-
Learn More
Close Support
3" Sealed Pouch
Stitched Hems -
Learn More
4" Accessible Pouch
Top Horizontal Fly
Stitched Hems
-
Learn More
Lined StratoPouch
4" Sealed Pouch
Stitched Hems
-
Learn More
Thin Caldera Pouch
Low-Profile StealthFly
Seamless Hems
HEY ALEX, I HAVE QUESTIONS!
What should I know about the fit?
The Anti-Gravity Brief does not have an inseam and the fabric between the legs is 40% narrower for an all day comfortable feel that won't bunch up. The pouch is designed to be large enough to provide you room, while being double layered to also provide support and privacy for your privates. All of this is benefited by our use of MicroModal which is incredibly lightweight and breathable.
What if I'm in between sizes?
Our sizes run pretty true and the materials do have stretch to them.
But if you're not sure which size is going to be the best for you, consider these three things:- Your waist in inches (pants size is OK).
- If your legs touch at the thighs.
- If you have a small, normal or large butt.
If your legs touch and your butt is large, you might jump a size.
If you have a small butt and thin legs, you can downsize.
What's MicroModal fabric?
In a word. Soft.
Really soft, our MicroModal is hand-selected to be of the highest grade available.
MicroModal is a modern technical fabric that is manufactured with cellulose from renewable Beechwood trees. Compared with Cotton, it's odor-resistant, 3 times softer, 50% more breathable, and it's not nearly as polluting or water-wasting.
Why such a big pouch?
Men come in all different shapes and sizes but for years underwear failed to respect our anatomy.
Our pouch is designed for the majority of men out there to accommodate and coddle. It's a blend of being soft with some stretch where needed, but also supportive for all day comfort. You won't need to adjust yourself anymore, because sticking to your legs is a thing of the past.
When will my item ship? How long will it take to arrive?
Please allow 2-4 days for processing, and the usual shipping times from the USPS or UPS: inside the US you can expect to see your package between 3-6 days.
We'll send you a confirmation email with your tracking information as soon as it ships.
If you have any questions or don't receive an email, feel free to reach out via our Contact Us Page.
What is your returns and refunds policy?
Our number one goal is that you're happy with your purchase.
If something doesn't fit right on your regular priced Krakatoa, let us know and we will make it right.
Try on a pair and make sure it's perfect in you. If it doesn't work for you, your first regular priced pair is covered.
After this first pair, all underwear must be unworn, unwashed, in the original condition and packaging that you received them for a refund.
If you bought multiple pairs, make sure you try ONLY ONE PAIR for fitting before you decide to use the rest.
INTRO PAIRS ARE FINAL SALE AND NOT RETURNABLE.
How do I wash my Krakatoa?
Krakatoa is quite resistant to shrinking and fading, but machine-washing them in cold water using the delicate setting and drying in low heat will keep them looking fresher for longer.
Please do not bleach, iron, or dry clean your boxer briefs or trunks. You can also wash it by hand and lay it flat to dry, for great results.
What's your 52 Wash Guarantee?
We've built a tough product with reinforced stitching that lays flat and the very best materials we could get our hands on.
That said, you should follow the care instructions.
We provide a 52 Wash Guarantee which is triggered by either 52 washes or 12 months from the date of purchase. If your item has any structural damage before 52 washes or 12 months, we'll replace them for free.
CHECK OUR REVIEWS
See how we have impacted guys from all walks of life.
Our products are only as good as the impact they have on those that experienced them.
- Jason W.Verified BuyerReviewingPinatubo BriefsRated 5 out of 5 starsBest pair ever!
Best thing I’ve ever worn. They fit perfectly and it almost feels like wearing air. Love these and I’ll definitely be buying more!
Was this helpful? - Travis K.Verified BuyerReviewingPinatubo BriefsRated 5 out of 5 starsPinarubo Briefs
They are great. I like the less fabric in the crotch area and the pouch is wonderful. I could wear just these and would I be free.
Was this helpful? - RosemaryReviewingPinatubo BriefsRated 5 out of 5 stars5 Stars
oh these are soooo comfy! i will note, i could probably wear one size smaller, these have a very forgiving fit, and feel like nothing at all lol, but somehow more comfortable!
Was this helpful? - scott l.Verified BuyerReviewingPinatubo BriefsRated 5 out of 5 starsLOVE the horizontal fly
EZ access and great fit.
Was this helpful? - Joe S.Verified BuyerReviewingPinatubo BriefsRated 5 out of 5 starsPinatubo briefs
Love how comfortable they are the wife loves how they look on me
Was this helpful? - Dylan C.Verified BuyerReviewingAnti-Gravity BriefsRated 5 out of 5 starsFit great
Good fit, comfortable, material feels good.
Was this helpful? - joseph v.Verified BuyerReviewingPinatubo BriefsRated 5 out of 5 starsvery pleased
very comfortable first pair, will buy more.
Was this helpful? - Jesse L.Verified BuyerReviewingPinatubo BriefsRated 5 out of 5 starsAmazing!
I've tried many different types of underwear over the years and krakatoa's are hands down the best!
The material, waist band, support are all extremely high quality and they are worth every penny it honestly feels like I'm wearing nothing at all. The trunks are just as amazing as well 😁
Was this helpful? - Brian M.Verified BuyerReviewingPinatubo BriefsRated 5 out of 5 starsGreat pair of briefs
These are soft, comfortable and the fabric keep kerps things cool.
Was this helpful? - Owen B.Verified BuyerReviewingAnti-Gravity BriefsRated 5 out of 5 starsBriefs
Very comfortable & easy wearing
Was this helpful?