Vesuvius trunk in blue front view

Vesuvius Trunks

Waist 28"-30" (XS) / Herculaneum Blue
$46.00 CAD
Sale price  $46.00 CAD Regular price  $46.00 CAD
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Vesuvius trunk in blue front view

Vesuvius Trunks

4.9
Rated 4.9 out of 5 stars
624 Reviews
$46.00 CAD
Sale price  $46.00 CAD Regular price  $46.00 CAD
  • 1.5” inseam
  • Horizontal Fly
  • 4” Deep Single Layer Pouch
  • 95% MicroModal / 5% Elastane
  • Seamless Leg Hems
Size
ColorHerculaneum Blue
3-Pack
$96.00 $81.60
Save $14.40
5-Pack
$160.00 $128.00
Save $32.00
7-Pack
$224.00 $168.00
Save $56.00

Savings are calculated for the current product being viewed.

Free Ground Shipping on Orders over $150

We do our best to process orders within 1-2 business days. Please keep in mind that over busy times this might take longer.

Mix match and save 3+ is 15%, 5+ is 20%, 7+ is 25%
Fit
  • Midrise
  • Form-fitting
First Fit Guarantee

1st Fit Guarantee

We want you to find the perfect fit.

Try on a single pair of underwear and make sure it's perfect for you.

If you bought multiple pairs, make sure you try ONLY ONE PAIR for fitting purposes.

NOT ONE PER STYLE OR LINE.

We will only be able to provide store credit for worn products limited to your first pair.

Please contact us directly at hello@krakatoaunderwear.com to discuss options.

1 Year Warranty

1 Year Warranty

We want you to feel confident making your purchase from us. We provide a 1 Year Warranty from the date of purchase. If your item has any structural damage resulting from a manufacturer's defect from 1 year of purchase, 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 hello@krakatoaunderwear.com with the subject "1 Year Warranty Claim". Please be sure to include photos of the damage for our records.

We will be in touch shortly after.

Full details can be found HERE.

Specs & Features

1.5" Inseam

For those that like a brief but prefer a bit more coverage.

Horizontal Fly

Easy access horizontal fly that makes it a breeze to access your parts.

4" Deep Pouch

Cupping 4" deep pouch that provides plenty of room and support.

95% MicroModal / 5% Elastane

The perfect blend of soft, yet structured to ensure that it maintains shape all day and doesn't stretch out.

Lay Flat Waistband

1.5" wide lay flat waistband that will not roll, bunch, or pinch.

Seamless Hems

Hems designed to stay tight all day and not loosen as the day goes on from movement. No one likes legs that ride up.

Materials & Care Instructions

95% MicroModal 5% Elastane

Care Instructions

Machine Wash Cold, Gentle Cycle, Do Not Bleach, Tumble Dry Low, Do Not Iron

Returns and Exchanges

Returns & Exchanges

We except returns on all unopened and sealed products within 60 days from purchase.

ALL INTRO PAIR ORDERS ARE FINAL. NO RETURNS OR EXCHANGES.

WHAT SETS US APART

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

Close up of Vesuvius with inverted fly in Hana Green

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.

micromodal v. cotton macro photo comparison

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 Tencel 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.

Colorful waistbands in a square image.

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.

Close up of seamless hems

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.

4.9
Rated 4.9 out of 5 stars
Based on 624 reviews
Total 5 star reviews: 576 Total 4 star reviews: 33 Total 3 star reviews: 8 Total 2 star reviews: 6 Total 1 star reviews: 1
97%would recommend this product
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624 reviews
  • Jonathan A.
    Verified Buyer
    Rated 5 out of 5 stars
    If all my favorite pairs of underwear had a baby, they’d name it Krakatoa

    I’ve always looked for comfortable and stylish underwear that kept things where they were supposed to be and looked great. I have a bin full of different brands I’ve tried, and somehow Krakatoa summed up the best of the best in one stellar design. Favorite features are how fresh the material is even after a long day of busyness and even a session at the gym. Additionally, the fly design is more than overdue. Thanks Krakatoa for having me in business in 3 seconds or less when things are urgent. They’re great in the fact that they position your manliness prominently, but don’t make you look obscene in public. They stretch with you in any situation. The waistband is very comfortable. They’re very durable through multiple washings. Take it from a guy who has like 25 different brands in his closet. These are the ones.

  • Robert M.
    Verified Buyer
    Rated 5 out of 5 stars
    The top of the Mountain

    I don't want to wear anything else. I'm awaiting the moment I can place an order to replace my entire drawer. The Vesuvius cradles my jewels like no other. 10/10 I never have to adjust myself as I have all the room I need and more.

  • Brandon M.
    Verified Buyer
    Rated 5 out of 5 stars
    My New Favs!

    I'm picky about my underwear. It's been my entire adult life struggle... finding something that is supportive, gives the right amount of lift (hate sitting on the boys!), and having an adequately sized cup to hold the junk... who makes the perfect pair? Well, so far, Krakatoa is taking the win. They're comfortable, they're breathable, they don't have too high of a rise (short guy here!)... they're really quite perfect! Alex is great and willing to have an open and blunt conversation when there are issues with size / fit. Support local / small business! We little people help make the world go round!

  • Scott K.
    Verified Buyer
    Rated 5 out of 5 stars
    Million dollar feeling.

    I’ve worn boxers for a very long time with a mix of a boxer brief here and there mainly for sports. Since wearing Krakatoa’s, I have emptied my drawers(literally, lol) and wear Krak’s full time now! Amazing quality, amazing cut, amazing feeling. Best I’ve ever had.

    Thank you Alex for your dedication in making the best boxer brief. Your Customer Service department (Jon+) is fantastic as well!

  • Joseph M.
    Verified Buyer
    Rated 5 out of 5 stars
    Perfect!

    I got 4 colors and couldn’t be happier!

  • LaDarius W.
    Verified Buyer
    Rated 5 out of 5 stars
    Absolutely Amazing!!

    Super soft, big pouch, stretchy and secure!! Absolutely amazing!!

  • Antonio S.
    Verified Buyer
    Rated 5 out of 5 stars
    Space for Different Moods

    Awesome. The most comfortable underwear I’ve ever worn. They’re super breathable and fit close to the body, but the banana-hammock portion stretches with me depending on my mood, so I’m never suddenly uncomfortable in that area. Almost like not wearing underwear, which is what I would prefer before I tried these. Now I wish I had more than the one pair. Might go for a M size next time, which will fit better when I’m not cutting weight. I can’t say enough about how much I love them.

  • Greg
    Verified Reviewer
    Rated 5 out of 5 stars
    Best Underware, great fit

    Just letting you know these underwear are like no other. They fit great and keep “everything” comfortable. It is as close as you can get to not having underwear on, but with the added comfort of having your boys and your unit not rubbing against your leg. Also adds a nice look with the way they are designed to allow my boys and unit to stay comfortable without having to reposition constantly

  • Tim M.
    Verified Buyer
    Rated 5 out of 5 stars
    All I wear now

    The Vesuvius trunks and briefs are all I wear since discovering them. They keep everything in place (even on my morning runs) are are comfortable like no other style!

  • Ryan
    Verified Buyer
    Rated 5 out of 5 stars
    The Ultimate Cradle for Your Crown Jewels

    There’s something about slipping into a pair of underwear that gets it—that understands a man’s body and celebrates it. From the moment I pulled these Krakatoa Vesuvius trunks out of the package, I could tell they were designed for a man who knows exactly what he’s got and isn’t afraid to let it be admired.

    The first thing that hit me? The fabric. Smooth, soft, seductive to the touch. But what really caught my attention? That pouch. I own a fair number of pouch underwear, but this? This was different. Bigger. Roomier. Almost daring me to see just how much it could handle. I’d sized up from a Small to a Medium after a tighter experience with a different Krakatoa model (see my video review of the Pinatubo trunks), and I’m glad I did. (For reference, I'm a 32" waist.)

    Pulling these trunks on felt like slipping into something made just for me. The waistband, perfect: secure but never restrictive, hugging my hips without pressing in. But let’s talk about the star of the show: the Caldera Pouch. Unlike other enhancing underwear that squeeze, lift, and present your package like it’s on display (and maybe it should be!), this pouch does something sexier: It simply lets you be. No artificial lift, no forced positioning. Just pure, effortless, natural masculinity for those guys whose junk puts the "man" in "manhood." It cradles you, holds you away from your legs, and lets your cock and balls settle into a soft, stretchy hammock where they can hang, swing, and move without…