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Anti-Gravity Trunks - Vesuvius Collection

  • $ 25.00
2" inseam, 95% MicroModal, Stay Flat Waistband
Free shipping in the US on orders over $75

About our trunks

Hey Alex, I Have Questions!

The Anti-Gravity Trunk is designed with a 2" inseam. The legs are designed to stay put, but can ride up a little depending on activities. 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 legs is a thing of the past.

We try our best to ship items the same day we receive your order. Shipping times can vary depending on your location. Inside the US you can expect to see your package between 3-5 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 126 Reviews
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United States United States
I recommend this product

Comfortable in all the right places

Can't go wrong with these trunks. Extra room in front pouch keeps everything in place and not squished. The waistband and fabric is so soft you don't even know you are wearing anything! Love it!

Krakatoa Underwear Anti-Gravity Trunks - Vesuvius Collection Review
David S.
United States United States
I recommend this product


I have purchased several pairs from different brands trying to get the best look and comfort. These hands down win so far, the fabric is so soft you don't want to take off. The pouch is larger to hold everything and not feel crowded. Just LOVE.

Krakatoa Underwear Anti-Gravity Trunks - Vesuvius Collection Review
Adam T.
United States United States
I recommend this product

Very comfortable loves these

These have been my go to underwear out of the draw lately.

Krakatoa Underwear Anti-Gravity Trunks - Vesuvius Collection Review
Mario G.
United States United States
I recommend this product

Great customer service !!!

Feels like not wearing nothing that all , so confortable , but if you are size 32 or 34 order a medium Feels perfect . Thank alex for a great customer service.

Krakatoa Underwear Anti-Gravity Trunks - Vesuvius Collection Review
Gary D.
United States United States
I recommend this product

Support...Great Title!

These are my third go round with Karatoa Anti Gravity trunks. Not because they are worn out, I just want have a pair of these high quality trunks to give the boys breathing room and comfort for every day of the week....even for when the laundry gets missed or delayed. SPOIL YOUR BOYS! You won't regret it.......

Jarrod S.
United States United States
I recommend this product


I spent several months reading about and researching different underwear options. I've always liked the microfiber because they don't lose support over time, even during the day. These are even more supportive than other brands that I have bought and are extraordinarily comfortable. Very happy with my purchase and about to order some more

Sergio C.
United States United States
I recommend this product


Not only do they fit well, but I also felt confident all day, more than I have wearing any others. I got stuff done at work, just felt like I could take on a lot. No hindrances, to the contrary, it showed in my step. I wore some snug jeans, and wow! The Comfort!

Brian B.
United States United States
I recommend this product

Great trunks, but...

First off, great design and fabric. They're comfy they hold my stuff well and are decently flattering as I'm an average guy and nothing special. Thankfully my wife has less than high standards. I have a suggestion after wearing these in some balmy 90+ degree weather, with some decent humidity in my full kit doing some army training. The pouch created it's own jungle type weather down there. It was as sticky as a rain forest and I feel I could've steamed rice down there. I believe it's due to the dual layer of fabric and it didn't allow it to really breathe like the rest of the trunk. If that pouch could be a single layer of fabric without the seam down the middle it would be fantastic! In training like that the boys need to be able to breath and I found these lacking in that department. Otherwise, everything else about these is great. Support for the boys... Nailed it, style is great, waistband could be softer, but still really comfy. If my boys could breath during training I'd buy another 10 pairs of these and have them as my go to fundies.

David B.
United States United States
I recommend this product

Finally, someone did it right !!!

I’ve never paid so much for a single pair of underwear. Well worth the price. Definitely a high-quality product. Very happy with my purchase. This will be the only underwear company I will buy from, from now on.

John S.
United States United States
I recommend this product

So Soft and Comfortable

Like going commando but with suport. My wife would like a pair of trunks without the front pouch.

Dustin M.
United States United States
I recommend this product

Comfortable and Attractive.

These have quickly become my favorite pair in my wardrobe. Soft, incredibly comfortable, stylish in a tasteful and sophisticated fashion. I love them and I suspect you will too.

Gerardo G.
United States United States
I recommend this product

Happy Camper

Simply Love it, excellent design, sssso comfortable, thanks �

Frank N.
United States United States
I recommend this product

Great fit

Hi everyone, welcome to your newest best feeling experience in clothing. I ordered a three pack black Showed up few days later tried them on. Like silk but more “hold in place” which I prefer wore them all day great feeling like nothing was there binding twisting or making me sweaty These are the most comfy shorts? I’ve ever had the pleasure to wear I’ve tried everything from commando to form fitting Lycra type nothing was close to the everyday comfort level of my Krakatoa’s Hope you try this product it’s terrific! Frank N

Joe N.
United States United States
I recommend this product

Went a size up and they fit PERFECTLY

I ordered a medium initially, which fit great in the waist; however, they were a little snug everywhere else. I had to keep adjusting when I was working out. I was sent a large and they fit perfectly! I forget I'm wearing underwear when I'm working out. I haven't had underwear this comfortable in years!

Jeff G.
United States United States
I recommend this product


I like the boxer briefs more than the trunks because I have giant legs but they both are made well and comfy. Will see how they hold up after a few months but so far so good!

Joe N.
United States United States
I recommend this product

I should have purchased a large.

I love the material, but the next time I purchase I'll be buying a large. I have a 32" waist, but big glutes and thighs. The trunks fit great in the waist, but ended up being too snug in the glutes, thighs, and the pouch could be larger as well. Things got uncomfortable when I was doing my leg workout and had to keep adjusting them as a result.


Krakatoa Underwear

Hi Joe! Bummer about the sizing issue, but no worries, just sent you another pair in size Large to try! Keep me posted ;) -Alex

Anthony C.
United States United States
I recommend this product

I've tried em all--Krakatoa is the only one that delivered.

Saxx, Sheath, Shinesty, even Hanes--I've tried every pouch underwear out there. While some delivered on a decent pouch--they had so much stitching coming together right behind my sack that they rubbed way, way too much for comfort. And who wants to be chaffed there?! Krakatoa skips the tortured stitching, has a roomy pouch, are soft as can be, and when I look down--or in a mirror--I like what they do for my package. Nice. Damn nice.

Chris R.
United States United States
I recommend this product

Worked Out Great!!

I ordered one pair because you never know what you're going to get when you're picky like I am. I have tried many brands and have only been satisfied in my recent years by two brands, this brand Krakatoa being one of them. My first attempt in these was going to be a quick overnight trip I needed to make by car, and I wasn't planning to shower again until I got home the next night. I was living on the edge. But the quick walk around the bathroom and then the house walking before jumping in the car all seemed fine, or else I would have changed. The whole trip was successful, and my underwear was never an issue. Very rare.

Raul L.
United States United States
I recommend this product

Great underwear - great service

The product is great! It’s early but after I got the 1st batch, I got back on and ordered more. Trunks and briefs. Loving it and telling my buds.

Richard S.
United States United States
I recommend this product

Comfy trunks

Good fit, good product and very comfortable, service is quick! Thanks