Black men's boxer brief featuring a contoured single layer Pouch with with horizontal fly, patterned waistband, seamless hems and a 5" inseam. Front Image.

Vesuvius Sports Boxer

Black Rock / Waist 28"-30" (XS)
$49.00 CAD
Sale price  $49.00 CAD Regular price  $49.00 CAD
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Black men's boxer brief featuring a contoured single layer Pouch with with horizontal fly, patterned waistband, seamless hems and a 5" inseam. Front Image.

Vesuvius Sports Boxer

4.9
Rated 4.9 out of 5 stars
608 Reviews
$49.00 CAD
Sale price  $49.00 CAD Regular price  $49.00 CAD
  • 5” inseam
  • Horizontal Fly
  • 4” Deep Single Layer Pouch
  • 95% MicroModal / 5% Elastane
  • Seamless Leg Hems
ColorBlack Rock
Size
Fit
  • Midrise
  • Form-fitting
Specs & Features

5" Inseam

Mid-length inseam that works well under running shorts and great for guys less than 5'10" or shorter legs.

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

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 608 reviews
Total 5 star reviews: 557 Total 4 star reviews: 37 Total 3 star reviews: 10 Total 2 star reviews: 4 Total 1 star reviews: 0
98%would recommend this product
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608 reviews
  • Mike F.
    Rated 5 out of 5 stars
    Most comfortable underwear ever!!

    Decided to try these after seeing a few ads. I couldn’t believe how comfortable these are. Without a doubt the most comfortable underwear I’ve ever had. First pair won’t be my last!

  • Mike M.
    Verified Buyer
    Rated 5 out of 5 stars
    The Ultimate Boxers

    As always, Krakatoa knocks it out of the park. Whether you're swinging a big bat or just have big baseballs, these are made for you. The Vesuvius line is the best pouch of any pouch-styled underwear that I've tried (and I've tried many). The bottom seem is pushed further back and lets everything just fall into place. It's the closest to feeling like you're freeballing. I have a few pairs of the longer Vesuvius, but was happy they made a middle length, and there's still zero issue with it rolling up. As always, the Krakatoa fabrics are comfortable and the construction is solid. Plenty of stretch in these even when there's some unexpected excitement. Thanks Krakatoa for looking out for the big boys.

  • Olivia
    Verified Buyer
    Rated 5 out of 5 stars
    A whole new way to look at white underwear!

    Wow! My husband just got the new white Vesuvius Sports Boxer to add to his other colors in his drawer. And we love them. I never thought white underwear would look this good. Of course he likes the fit, comfort and support. And we both appreciate the softness. The new color is great. I love it when I see him around there house in just these briefs!

  • Macsen V.
    Verified Buyer
    Rated 5 out of 5 stars
    Death to bat-winging and the constant need to adjust! One of the best pouch-style undies I’ve ever found!

    I submitted a nearly identical review for the Vesuvius Trunks, but I find that I like the Vesuvius Sports Boxer more than the trunks because of the added leg coverage, which prevents chafing.

    I’ve now ordered from Krakatoa 4-5 times. With each iteration they just keep improving!

    The pouch on the Vesuvius line is superior to other brands (and earlier products from Krakatoa) because of how deep it is, and how far it extends toward the rear, back behind your balls. I find that my anatomy stays inside the pouch no matter which position I’m sitting or standing in, or how actively I am moving. That’s just not true of all but one other brand of pouch-style undies that I have found. The others I have tried are great for standing and walking, but as soon as I sat down or started moving around or bending at the hips to the extreme I’d fall out of the pouch and lose the benefit of having it. The comfort of the pouch is so great, especially while sitting down! It’s so nice to have a pouch that keeps things separated, yet supported 100% of the time, in all positions.

    Other reasons why I love ‘em; The fit and finish is superior, the feel of the fabric is soft and supple, yet supportive, I don’t even notice the seams, and the waistband feels great and never rolls. Might be TMI, but there is ample room to accommodate “episodic growth” 😈 when things get exciting. No more feeling smashed / trapped / bent at a weird angle. And lastly, I love how sexy they make me feel….and look. Everything…

  • JAMES B.
    Verified Buyer
    Rated 5 out of 5 stars
    Like that naked feeling

    These underwear are just like being naked, light as a feather, but good support. Love the hidden fly. I was a loyal Tommy John supporter, but will be switching

  • Keyser S.
    Verified Buyer
    Rated 5 out of 5 stars
    Life changing underwear

    I stopped wearing underwear about 20 years ago because I could never find a brand/pair that I wanted to wear on a daily basis. They were always too tight, squishing down my girthy bulge into a flat hot pocket. Sure… if I was dressed nice for a business dinner, wedding, a formal event, or in a suit or some slacks I would wear/tolerate the underwear I had. But if I was in daily jeans or shorts I’d be free swinging. I tried various styles and fabrics and brands over the years. Always just throwing them out, until now. I then discovered Krakatoa and ordered a pair for every day of the week. My Krakatoa underwear are, without question, the only underwear I’ve enjoyed wearing on a daily basis in over 20 years. I’m a muscular 5’9” and 238 lbs. and have a 36” waste with 29” thighs. I wear the Vesuvius 1.5” in an XL and the Vesuvius 5” in an XL. And I genuinely can’t imagine wearing any other underwear again. Thanks for helping “my boys” find a home again.

  • LaDarius W.
    Verified Buyer
    Rated 5 out of 5 stars
    Love These!!

    Spacious pouch and love the color and fit!! I'm a small and I ordered a small, so true to size!!

  • Olivia
    Verified Reviewer
    Rated 5 out of 5 stars
    From a woman's perspective

    Not sure if women see these reviews or if men care, but I thought I'd share my thoughts. My husband bought the Vesuvius Sports Boxer briefs and I love them. He looks

    magnificent in the Caldera pouch. Incredible. I just bought him 4 more. Just love the way these briefs highlight his amazing masculinity. Ladies, get these for your man. You'll love him for it!

  • Chase C.
    Verified Buyer
    Rated 5 out of 5 stars
    Best Underwear I’ve Ever Owned

    These (and everything I’ve bought from Krakatoa) are easily the best underwear I’ve ever owned. In terms of both quality and comfort they are unparalleled. If you’re hesitant because of cost I can assure you that they’re worth it.

  • Jess J.
    Verified Buyer
    Rated 5 out of 5 stars
    Too spoiled to go back

    After the trial pair blew my mind I went back and ordered 6 more pairs. I kept all my other underwear as backups or whatever but I find that instead of wearing them I just make sure my Krakatoas are always clean. I’m just too spoiled now to wear anything else because I know it won’t be as comfortable. Well done, two words I rarely use, let alone for underwear!