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Pinatubo 3 Pack of Boxer Briefs - Multi-Color

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7" inseam, Horizontal Fly, 95% MicroModal, No-Fold Waistband
We pay your shipping in the US on orders over $75

About our boxer briefs

Hey Alex, I Have Questions!

The Anti-Gravity 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. All of this is benefited by our use of MicroModal which is incredibly lightweight and breathable.

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.

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.

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 accomodate 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 leg is a thing of the past.

Please allow 2-4 days for processing, and the usual shipping times from the USPS: 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.

Our number one goal is that you're happy with your purchase.

If something doesn't fit right, 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 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 a pack with multiple pairs, make sure you try ONLY one pair before you decide to use the rest.

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.

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.

Customer Reviews
5.0 Based on 63 Reviews
5 ★
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Anthony Y.
United States United States
I recommend this product


Ever since I found Krakatoa I have been wearing them. So when these came out I knew I had to try. I can’t even explain how comfortable they are I don’t feel them at all. I wasn’t sure how I would feel about the Horizontal Fly but, now I can’t imagine not having it. The amount of use and easy access just mean I can be more comfortable and never have to really adjust. They have so much room and it’s so easy to just reach in and use the restroom lol I really do love these planning on buying more.

Krakatoa Underwear Pinatubo 3 Pack of Boxer Briefs - Multi-Color Review
Jon L.
United States United States
I recommend this product


These are by far my new favorite underwear!

Alan P.
United States United States
I recommend this product

Pinatubo boxers

They are soft , waist band is the nicest i have ever felt. The access in front is the most convenient invention ever. I really like them alot.

William G.
United States United States
I recommend this product

So Comfortable

I cant say I have ever worn anything so soft and comfortable. The way it holds the boys is truly amazing.

jon s.
United States United States
I recommend this product

Blown Away

Incredible support and Comfort No adjusting all day. I'm being in my sixties Your Balls drop and it s definitely keeping me from sitting on them

David S.
United States United States
I recommend this product

GreT products

I like them very well. I plan on purchasing more

Javier G.
United States United States
I recommend this product

Great fit

Just the kind of underwear I been looking for. It’s soft and comfortable

Justin M.
United States United States
I recommend this product

Amazing (mostly)

These are truly the softest, most comfortable underwear I’ve ever worn—and I’ve tried A LOT. The only downside, and I’m not sure it won’t keep me from purchasing more of these, is the horizontal fly opening. It’s super convenient for accessing my bits when going to the bathroom. But… (and I am truly not trying to be ****** here, but totally honest) men get spontaneous erections. It’s fact of life for us. When it happens, the positioning of the fly on these means that my “guy” comes poking right out of my underwear every time. It feels weird and it’s inconvenient.

Ryan H.
United States United States
I recommend this product

Great undies

Super soft and comfortable fit. I will be buying more when the time comes.

Allen A.
United States United States
I recommend this product

Great Product!

Comfortable and lightweight! Second purchase, sure to be more!

Pat C.
United States United States
I recommend this product

Great fit!

The underwear fits perfectly. Nice feel and everything keep's cool.

Seth C.
United States United States

New vibes

These are great underwear! I've tried a few different "pouch" styles and these are the best yet!

James K.
United States United States
I recommend this product

Best underwear for "my boys" ever!

Seriously, just buy them! SUPER comfortable ALL DAY, pouch is GREAT for keeping things dryer and cooler down there, the horizontal fly is super easy to use once you get used to it. I really don't want to wear my other underwear after trying these for a day! JUST BUY IT!

Lenny T.
United States United States
I recommend this product

The best

Fabric is very soft and comfortable. The pouch holds the little suckers right in place.

Joseph S.
United States United States
I recommend this product


I’ve tried many diff brands but Krakatoa have been the best. Very comfortable, like wearing nothing at all.

Darryle C.
United States United States
I recommend this product

These things are beyond comfortable!

I bought the Pinatubo 3pk of boxer briefs and I couldn't be happier. I will purchase more in the near future. The unique fly is a genius idea and very very easy to master. The waistband keeps them exactly where you position them, regardless of the activity. I am happy and the boys are definitely happy, wallet is a little put out, but I have had similar briefs last years, problem was they were ill fitting and uncomfortable, they never were as comfortable as the Krakatoa even when they were new.

Rick C.
United States United States
I recommend this product

I love them!

I tried a couple pairs of the original white back a while ago. I’ve absolutely loved them and use them as one of my benchmarks in the premium underwear market. The Pinatubo adds a few features and continues the incredible combination of support and comfort.

James W.
United States United States
I recommend this product

Pinatubo briefs

It’s unbelievable. The awesome kangaroo pouch. The amazing material. I have changed all my underwear to Krakatoa. Glad I found the #1 brand of mens top quality underwear. I have been informing my friends about this product this product is built to last. Jim

J T.
United States United States
I recommend this product

Simply the Best

After years of throwing my money away on worthless or flimsy “luxury boxer briefs “, along comes hope. These are the BEST I have ever put on. This is a brand to watch and buy in on. The fit is a bit larger than expected so you may want to size down. I am so excited what this company is about and where they are going. I also know, this is the only brand that I want to cover my ***.

United States United States
I recommend this product

Great undies

I love these , the fit they are just downright comfortable. I'm looking forward to getting more.