Pinatubo Boxer Briefs
Pinatubo Boxer Briefs
Horizontal Fly, 95% MicroModal, Stay Flat Waistband, 7" inseam
Size Guide
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Save 20% when you buy 7+ pairs.
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📦 Orders ship within 1-2 business days
The Details
The Details
The Easy-Access Boxer Brief
Pinatubo’s top-access horizontal fly offers a quick-draw, one-handed action, making it easy to reach in and go—putting the ‘fun’ back in functional.
The large, 3-inch deep front pouch, with minimal stitching, is designed to keep you separated from your thighs and comfortably supported all day long.
Form-fitting ultra-premium MicroModal fabric holds you softly and leaves you feeling fresh and cool.
Wide and ultra-smooth waistband won't flip or mark your skin.
Legs that don't roll up or bunch up.
Inseam: 7 inches
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.
Try on a single pair and make sure it's perfect for you.
If you bought multiple pairs, make sure you try ONLY ONE PAIR for fitting purposes.
After this first pair, all underwear must be unworn, unwashed, in the original condition and packaging you received them in for a refund.
Due to the nature of our product we cannot accept returns of worn products. We will only be able to provide store credit for worn products limited to your first pair.
Please contact us directly at support@krakatoaunderwear.com to discuss options.
52 Wash Guarantee
52 Wash Guarantee
We want you to feel confident making your purchase from us. 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 resulting from a manufacturer's defect before 52 washes or 12 months, we'll replace them for just the cost of shipping.
The guarantee excludes damage caused by neglect or abuse, by intentional damage, accidental damage, color fade, pilling, stains of any kind, and deliberate attempts to damage the product.
Applies to any product purchased, does not apply to any product provided as a replacement.
Send us an email at support@krakatoaunderwear.com with the subject "52 Wash Guarantee Claim". Please be sure to include photos of the damage. We will be in touch shortly after.
Full details can be found HERE.
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.
I'm Alex, I made these for you.
Find your size
You'll need a a pair of your existing underwear, a flat surface, and a measuring tape.
FULL SUPPORT WITH A FLY Putting the Fun in Functional
Pinatubo’s 3” deep pouch design with minimal stitching keeps you comfortable and secure all day.
The one-handed, top-access horizontal fly provides effortless reach into the goods.
The low-stitching 3" pouch is ultra-smooth, without holes, panels or gimmicks.
It just works.
It separates you from your thighs, ensuring comfortable support through all of life’s adventures.
THE FINEST MICROMODAL FABRIC
Exceptional Softness and Breathability.
Say goodbye to readjustments!
Our large 3" pouch design with minimal stitching ensures you stay comfortable and secure all day.
The one-handed easy-to-use horizontal fly allows for easy access.
It separates you from your thighs and keeps you comfortably supported in all of life's adventures.
SOFT STITCH HEMS
For Legs That Stay Put.
Our boxer briefs are perfect for active guys that prefer a longer leg to fit under their pants or long shorts. They are ideal for daily wear, hiking and protecting the inner thighs from chafing.
The legs are cut to be tailored but not compression. The bottom hems are stitched to stay in place, the longer legs allow for the legs to stay put and not ride up over the quad.
UNFLIPPABLE WAISTBAND
Art On Your Body.
Our waistbands are wide, smooth, don't leave marks, and are truly unflippable, offering a secure fit that prioritizes style and your comfort over branding. We focus on modern designs rather than flashy logos, framing your body beautifully.
Inside, you’ll find positive, self-affirming words designed to motivate you daily, inspiring you to be a better person to yourself, and to those around you.
Experience the perfect blend of style and substance with a waistband that uplifts and empowers you.
HEY ALEX, I HAVE QUESTIONS!
What should I know about the fit?
The Pinatubo Boxer Brief is designed with a 7" inseam.
The legs are designed to stay put, but be long enough to cover an increased amount of your legs to add a layer of protection from friction.
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.
The Horizontal Fly allows for super easy access.
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?
All returns are available for 60 days following their delivery date.
We’re happy to accept any items that are unused, unopened, unworn, and in their original packaging.
WE ARE UNABLE TO ACCEPT ANY PRODUCTS THAT HAVE BEEN WORN.
We strongly encourage you to add shipping insurance and hassle free returns to your orders as it appears in the cart, especially if it’s your first order.
We strongly recommend that you only try on only one pair for sizing purposes.
You can start a return at any time in our Returns Portal.
Given the nature of our product, and for health and safety reasons, we are unable to provide exchanges at this time.
Buyer will be responsible for any associated return shipping costs.
How do I wash my Krakatoa?
Krakatoa is quite resistant to shrinking and fading, but machine-washing them in cold or medium temperature water, 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 want you to feel confident making your purchase from us. 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 resulting from a manufacturer's defect before 52 washes or 12 months, we'll replace them for just the cost of shipping.
The guarantee excludes damage caused by neglect or abuse, by intentional damage, accidental damage, color fade, pilling, stains of any kind, and deliberate attempts to damage the product.
Applies to any product purchased, does not apply to any product provided as a replacement.
Send us an email at support@krakatoaunderwear.com with the subject "52 Wash Guarantee Claim". Please be sure to include photos of the damage. We will be in touch shortly after.
Full details can be found HERE.
WHICH BOXER 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 are what set them apart.
Here is a quick guide:
-
Learn More
3" Low-Seam Pouch
Top Horizontal Fly
Stitched Hems -
Learn More
The Original
3" Sealed Pouch
Stitched Hems -
Learn More
Thin Caldera Pouch
Low-Profile StealthFly
Seamless Hems -
Learn More
Lined StratoPouch
4" Sealed Pouch
Seamless Hems
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.
- DougReviewingPinatubo Boxer BriefsRated 5 out of 5 stars5 Stars
Great quality super soft
Was this helpful? - RUSLAN D.Verified BuyerReviewingPinatubo Boxer BriefsRated 5 out of 5 starsSo Far So Good
Love the feel. Several washings later, it still looks nice. I have no complaints. Not quite yet, anyhow. So far, so good. Whatever you're doing to make the product look good and feel good! I love it! Thank you!
Was this helpful? - Felix V.Verified BuyerReviewingPinatubo Boxer BriefsRated 5 out of 5 starsComfortable!
Pricey, but worth it. Started with 2 just to try. See what the hype is about. I’m working on getting rid of the others now. Just bought 3 more and definitely plan on getting more. They are the most comfortable boxers I’ve ever worn. Keeps everything from smashing and pressing. I also EDC a compact, which was the need for new boxers as the old pairs would cause pain with the EDC. Game changer for sure.
Was this helpful? - RONALD J.Verified BuyerReviewingPinatubo Boxer BriefsRated 5 out of 5 starsThe boys dig em
Hands down best chones I’ve had and I’ve tried many. I started with the trial pair and quickly purchased another 7 pair. These are extremely comfortable as well as functional. I pretty much live in a uniform so the fly was important to me so I went with the Pinatubo. No regrets. Hoping they last as long as they are comfy!
Was this helpful? - Patrick H.Verified BuyerReviewingPinatubo Boxer BriefsRated 5 out of 5 starsAWESOME SAUCE
BULLSEYE !!
Was this helpful? - Stephen E.Verified BuyerReviewingPinatubo Boxer BriefsRated 5 out of 5 starsGreat product!!!
Great product! Been searching for better boxers for a while and I have found the ones I’m going with from now on!
Was this helpful? - David D.Verified BuyerReviewingPinatubo Boxer BriefsRated 5 out of 5 starsGreat boxer briefs
I am a 69 year old male who is very active and I enjoy the finer things in life. I have been on a mission trying to find the most comfortable pair of underwear available and in the past six months, I have purchased no less than 6 different pairs of underwear from 6 different manufacturers who all claim to be the "best" and "most comfortable". With that said, I can say without a doubt that the Pinatubo Boxer Briefs are the most comfortable pair of underwear I own and I will purchase additional pairs to add to my wardrobe.
Was this helpful? - mark h.Verified BuyerReviewingPinatubo Boxer BriefsRated 5 out of 5 starsWhere have the been all of my life? It's time for new underwear!
Your great video convinced me to try your underwear. Most underwear denies the existence of genitals.
I would rather go commander than spend my day with my genitals stuck to or between my legs. Giving my genitals their own compartment has alleviated my need to adjust myself while sitting, driving and walking. The top load pocket is easy to use, with a full seat, ample leg openings and the material is soft and comfortable. The colors are great, no annoying seams and a flat smooth waist band.
I am ordering winter and summer styles now.
Was this helpful? - JARED B.Verified BuyerReviewingPinatubo Boxer BriefsRated 5 out of 5 starsOfficially switch brands!
I love the Pinatubo boxer briefs! These were my gateway drug into the Vesuvius model. (I’m a medium Frank, with XL Beans…).
Nonetheless, these are still in regular rotation!
Was this helpful? - James D.Verified BuyerReviewingPinatubo Boxer BriefsRated 5 out of 5 starsVery comfortable!
Love the fit and feel.
Was this helpful?