Krakatoa Underwear
Anti-Gravity Briefs
Anti-Gravity Briefs
Save 10% when you buy 2
Save 15% when you buy 3
Save 20% when you buy 7
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95% MicroModal, Stay Flat Waistband, Deep Pouch
📦 Orders ship within 1-2 business days
- FREE SHIPPING ON ORDERS OVER $75+
- 1ST ORDER FIT GUARANTEE
- 52 WASH GUARANTEE













KRAKATOA ANTI-GRAVITY BRIEFS
The OG mac-daddy of all Briefs that we have to offer.
Large, 3" deep front pouch engineered to separate you from your thighs and keep you comfortably supported.
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.

WHO ARE KRAKATOA BRIEFS PERFECT FOR?
The Krakatoa Briefs are perfect for active guys that prefer as little material between their legs as possible. A supporting large front pouch with 40% less material between the legs make for some of the best fitting briefs on the market.
Need a little more leg coverage? Check our our Boxer Briefs or Trunks which come with 7" and 2" inseams respectively. Whether you're working out or going for a night out, these Briefs are so comfortable you'll forget you're wearing them.
ABOUT OUR BRIEFS

WHAT MAKES THEM KRAKATOA?
- 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 then blend the MicroModal with 5% Spandex to allow for it to move with you.
- Enjoy more room with a large front pouch that provides space and support for your cargo, with complete separation from your thighs. No need to adjust anymore.
- Feel comfortable all day with a waistband that doesn't flip or fold.
- And keep them longer with the peace of mind of our 52 Wash Guarantee.

WHAT'S GREAT FOR THE WEARER?
The Krakatoa Briefs are specifically designed for maximum comfort. They work well for a variety of activities, from working out to lounging around, they can take on anything you throw at them. Once you make the decision to embrace this everyday luxury for your privates, getting dressed in the morning will never be the same again.
Great for: Walking, Hiking, Lifting, Exercising, Yoga, Lounging.
COMPARE OUR BRIEFS
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.
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A FABRIC TO OVERLOAD THE SENSES
Your skin never felt a fabric so soft and welcoming before. Three times softer than cotton, our high-grade, environmentally-conscious MicroModal fabric will make you rethink cotton and synthetics forever.
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A POUCH FOR ALL OF US
Large, round, and deep support, without uncomfortable lift. Naturally odor resistant, it separates and cradles you, so you won't need to adjust anymore. Its double-panel construction keeps your privates more private.
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A WAISTBAND THAT IS PURE LUXURY
Smooth and soft to the touch, the unflippable waistband won't mark your skin and keep you comfortable all day. To complement the art outside the waistband, its interior has positive affirmations to get you going at every break.
- Eric W V.Verified Buyer29 minutes agoReviewingPinatubo BriefsRated 5 out of 5 starsGreat Briefs
Very comfortable. I’m very pleased with the quality and comfort of these briefs.
Was this helpful? - Brian K.Verified Buyer19 hours agoReviewingKrakatoa Intro Brief - $10Rated 5 out of 5 starsComfy
Comfy brief for $10. Fabric is super soft and stretches when needed. I'll be buying more!
Was this helpful? - Joel W.Verified BuyerYesterdayReviewingAnti-Gravity BriefsRated 5 out of 5 starsFirst time wearing briefs in a while
Great fit and unbelievably comfortable.
Was this helpful? - Brent C.Verified Buyer2 days agoReviewingPinatubo BriefsRated 5 out of 5 starsSuper comfortable, very supportive
Love the comfort and support. They fit just right, I've bought all kinds of briefs but these just felt perfect. Also LOVE the words printed inside the waistband
Was this helpful? - Valentina H.Verified Buyer2 days agoReviewingKrakatoa Intro Brief - $10Rated 5 out of 5 starsGreat Quality
The Briefs are great! I actually purchased them for my husband as a surprise and he loves them!
Thank you Krakatoa! We will continue to support your small business!
Was this helpful? - MATTHEW C.Verified Buyer2 days agoReviewingKrakatoa Intro Brief - $10Rated 5 out of 5 starsAbsolutely amazing
I would be lyi g if I expected to like these as much as i do. They fit great, provide support where i need, they feel great, and they look even better. I will be buying more!
Was this helpful? - Tony H.Verified Buyer2 days agoReviewingPinatubo BriefsRated 5 out of 5 starsAwesome
These fit so well and feel like you’re wearing nothing at all. I purchased this brand when they were first starting out and am happy to see the line growing. The quality is worth the cost.
Was this helpful? - Tony H.Verified Buyer2 days agoReviewingAnti-Gravity BriefsRated 5 out of 5 starsAwesome
These fit so well and feel like you’re wearing nothing at all. I purchased this brand when they were first starting out and am happy to see the line growing. The quality is worth the cost.
Was this helpful? - Patrick S.Verified Buyer2 days agoReviewingKrakatoa Intro Brief - $10Rated 5 out of 5 starsWas I really wearing underwear?
I literally forgot I was wearing underwear. So comfortable and the fit is great!
Was this helpful? - Tim G.Verified Buyer3 days agoReviewingPinatubo BriefsRated 5 out of 5 starsGreat Buy!
This is my second order, and I am really pleased with all of my gear so far. The material is very lightweight, which is great for travel, but doesn't have the see-through qaulity some other brands do. They fit great and the fabric washes well. I've recommended to friends and family.
Was this helpful?