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Vesuvius Boxer Briefs

Vesuvius Boxer Briefs

4.9
Rated 4.9 out of 5 stars
387 Reviews
Regular price $ 38.00 USD
Regular price Sale price $ 38.00 USD
Sale Sold out

Seamless Hems, Caldera Pouch, StealthFly, 95% MicroModal, 7" Inseam

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The Details

Let It All Hang.

Vesuvius Next Gen features the all-new Caldera Pouch—an extra-large, single-ply front pouch that cascades down, providing a natural, unrestricted feeling, almost like being naked. To enhance this experience, our exclusive low-profile StealthFly ensures no accidental escapes and offers discreet, easy access.

The Vesuvius Next Gen are the most natural-feeling underwear you ever tried.

With a comfortable 7" inseam and ultra low-profile seamless hems, they will stay put without pressure, invisible under your pants, and won't roll or bunch up.

Form-fitting ultra-premium 95% MicroModal fabric holds you softly and leaves you fresh all day.

Wide and ultra-smooth waistband won't flip or mark your skin.

Inseam: 7 inches

52 Wash Guarantee. Because we can.

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

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+

We provide free basic shipping for all orders over $75 in the United States.

View full details

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.

THE FEATURES YOU ASKED FOR

Every little detail was obsessively fine-tuned, to deliver you an underwear experience like no other:

THE CALDERA POUCH
Super Thin and Flexible, with StealthFly.

Elevate your comfort game with the all-new Caldera Pouch, designed for the ultimate in relaxation and ease. Slip into a world of barely-there comfort with our deep and low single-ply design, offering incredible flexibility and sensitivity. Experience a gentle embrace that feels like second skin, cradling your most delicate areas with care.

The new StealthFly is the exclusive horizontal fly from Krakatoa, incredibly easy to use and barely noticeable.

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.

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.

FLAT SEAMLESS HEMS
For Legs That Stay Put.

Seamless hems are a game-changer, offering unmatched comfort and a sleek look under any outfit. Their innovative design ensures they stay put without pinching or leaving marks, providing a smooth, barely-there feel against your skin.

Perfect for any activity, seamless hems eliminate visible lines, giving you a flawless silhouette even under the most form-fitting pants. Enjoy the freedom of movement and the confidence of a perfectly polished appearance with the low-profile seamless hems on Vesuvius Next Gen.

HEY ALEX, I HAVE QUESTIONS!

What's the Caldera Pouch?

Our new Caldera Pouch is a reimagined front pouch, featuring a U-shape design that offers a natural feel and relaxed support.
It's not designed for vigorous activities, because it's like you are Going Commando, but without sticking to your legs.
The innovative design gently cradles your genitals, allowing them to naturally fall into place for a super comfortable and natural fit.
Crafted from a single layer of our ultra-thin 95% MicroModal fabric, the Caldera Pouch offers a barely-there sensation while providing all-day comfort and breathability.

What should I know about the fit?

The Vesuvius Next Gen Boxer Brief is designed with a 7" inseam. The hems on the leg openings are seamless, for a stealthy look and supreme comfort, besides staying put all day.
They are long enough to cover an increased amount of your legs to add a wide layer of protection from chafing.
The Caldera Pouch is designed to be large enough to provide you a lot of elasticity and room, while being single-layered to provide a loose feeling of separation.

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.

All Krakatoa Pouches are 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 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 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:

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.

4.9
Rated 4.9 out of 5 stars
Based on 387 reviews
Total 5 star reviews: 362 Total 4 star reviews: 22 Total 3 star reviews: 2 Total 2 star reviews: 1 Total 1 star reviews: 0
97%would recommend this product
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387 reviews
  • Griffin B.
    Verified Buyer
    Rated 5 out of 5 stars
    Honest review

    I saw these in a yt add (don’t know why) and I will say that these have the most breath ability and are comfy and put my kalvin Kleines to shame in that regard . Also I’m an average guy but definitely a confidence boost.

  • Phillip M.
    Verified Buyer
    Rated 5 out of 5 stars
    Excellent

    Fit and finish is great. Will be ordering more.

  • Steve H.
    Verified Buyer
    Rated 5 out of 5 stars
    Krakatoa Rocks

    Simply the most comfortable underpants ever.

  • Charles J.
    Verified Buyer
    Rated 5 out of 5 stars
    Buy

    Comfortable and holds everything in place. Love the easy access to be able to urinate.

  • Adam T.
    Verified Buyer
    Rated 5 out of 5 stars
    Vesuvius- Briefs, Trucks, and Boxer Briefs XLs

    Ok doing a review for all 3. I waited a little while because I had some travel and wanted to give them a full test. I’ve tried other pouch styles and like them but wasn’t satisfied, always adjusting, bands didn’t hold, ran hot, too tight in the wrong areas. So I read about these and I ordered the Pinatubo and Vesuvius, Pinatubo is great but I prefer the Vesuvius, the double layer isn’t bad and nice support but I like more room and single pouch. First off the quality is fantastic, the material is soft and breathable, the band stays and doesn’t fold! Side note on the boxer briefs the legs don’t ride up and held up great for a workout too!

    I wore these in some freezing cold weather while walking around NYC for 2 days and they kept me comfortable. Breathable and don’t have to adjust. Fast forward a few days now wearing them in Mexico, these are perfect, comfortable in every climate. Great for sleeping as well. Finally found the right ones!

  • DAVID A W.
    Verified Buyer
    Rated 5 out of 5 stars
    Literally like nothing!

    FINALLY a pair of underwear for guys with big scrotums, nuts, and packages! I bought a brief, boxer, and long boxer of the Vesuvius to try all and they all are like a second skin that gently holds your package without crushing like all other small cups underwear.

  • John L.
    Verified Buyer
    Rated 5 out of 5 stars
    Awesome

    Super comfortable, ordering more

  • Matt N.
    Verified Buyer
    Rated 5 out of 5 stars
    Does the job like no other!

    Some of the best pair I’ve ever worn! The material is perfectly soft and light, the fit is great with just enough support and plenty of room in the front so as not to crush the goods or pull the fabric away from the thighs. Everything stay separate! The invisible seam is a great touch and it’s pretty much invisible in tight clothing unless you’re looking for it.

  • oscar s.
    Verified Buyer
    Rated 5 out of 5 stars
    Well done!

    Great all around. The fit, material, and look for these are perfect. Wasn't sure about the horizontal fly, but it works great.

    Like the positive messages on the waistband as well...nice touch.

  • John H.
    Verified Buyer
    Rated 5 out of 5 stars
    Very comfortable

    These underwear meet and exceed the descriptions. Fit is nice and supportive without the weight of other brands. Colors are nice and cool in the summer. We will see how they are in a cold winter. Worth the extra money so far.

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