Herculaneum Blue Vesuvius Thong with a blue and gold patterned waistband on a white background. Front view.

Vesuvius Seamless Thong

Herculaneum Blue / Waist 28"-30" (XS)
$43.00 CAD
Sale price  $43.00 CAD Regular price  $43.00 CAD
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Herculaneum Blue Vesuvius Thong with a blue and gold patterned waistband on a white background. Front view.

Vesuvius Seamless Thong

4.9
Rated 4.9 out of 5 stars
247 Reviews
$43.00 CAD
Sale price  $43.00 CAD Regular price  $43.00 CAD
  • 4” Deep Single Layer "Natural Hang" Pouch
  • 95% MicroModal / 5% Elastane
  • Seamless Construction
ColorHerculaneum Blue
Size
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

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:

THE CALDERA POUCH
Super Thin, Flexible, and Sensitive.

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, while letting it move naturally.

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 247 reviews
Total 5 star reviews: 227 Total 4 star reviews: 12 Total 3 star reviews: 6 Total 2 star reviews: 1 Total 1 star reviews: 1
97%would recommend this product
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247 reviews
  • Bob B.
    Verified Buyer
    Rated 5 out of 5 stars
    Highly recommend the Vesuvius Seamless thong!

    For many years I have been searching for the perfect underwear.. I want a basic amount of support but with as little material as possible... I would like to go "Commando" if I could, but then your privates end up flopping around and/or ending up in places you wish they were Not!

    So to that end... I have been a thong wearer for a while now and have tried many different brands. Many are very good but the Krakatoa Vesuvius thong is a standout and is excellent. I just received my first pair yesterday and have been wearing them for a full day now and I can tell you that these are going to become my favorites.

    First of all the material is super soft and silky. It feels like a gentle caress on the delicates and the back strap is very soft and thin and feels like it is barely there. If you have not tried thong undies before because you think it would be uncomfortable "up there" I can assure you that that WILL NOT be an issue with the Vesuvius seamless thong.

    Secondly, the pouch is super large and comfy.. no compression of the jewels at all. I must say it might be a little large for my basic set of equipment, but if there is any enlargement activity going on plenty of room to grow and if I say so myself you can clearly see the outline of such growth... perfect for sharing with a close friend if you know what I mean.

    Thirdly the waistband is a work of art in itself, and I personally love the color matching they did. It is super comfortable and the inspiring words on the inner…

  • CB
    Verified Reviewer
    Rated 5 out of 5 stars
    First time thong wearer

    Older fella and I wanted to feel young again. The vesuvius didnt disappoint, although I was a little concerned about the strap. Must say, I am a convert. Thanks for making me feel sexy.

  • Carlos C.
    Verified Buyer
    Rated 5 out of 5 stars
    Exceptional Support & A Surprise New Favorite

    On my first purchase from Krakatoa, I had a bit of a "fit fail." However, the way their team handled it is a perfect example of why they have such a loyal following.

    I emailed asking for help, and Alex reached out personally to address my concerns. I later learned that one of the many hats Alex wears is lead designer, so I’m confident that feedback goes directly toward product improvements rather than getting lost in some random queue.

    Alex suggested making the move to the Vesuvius Thong. I have to confess I’d never worn a thong before, but after trying it, I think I’m a convert!

    Pouch Depth: The pouch is incredibly accommodating, and the flexible fabric allows for total freedom.

    Stability: The waistband stays exactly where it should—no more rolling down or constant adjustments.

    Comfort: The seamless string is incredibly elastic and comfortable for all-day wear.

    Thanks, Alex—I’ll definitely be getting more!

  • Mike C.
    Verified Buyer
    Rated 4 out of 5 stars
    Glad I made the leap.

    I am starting to really like these. The pouch is just right and they look great. I do wish they were just a tad more low rise. But I will be ordering another pair when they get in stock.

  • Desire W.
    Verified Buyer
    Rated 5 out of 5 stars
    For Real Men

    Krakatoa is the number one brand that is made for men by men. These new thongs are a game-changer and give me a massive boost to my masculinity and confidence. Not only is the material they are made out of the absolute best I've ever felt, but the way it stretches and holds everything in place is the best thing about it. You can't get this type of love and care from any other brand of underwear on the market. Definitely worth the price.

  • Ian
    Verified Buyer
    Rated 5 out of 5 stars
    The dog's bollocks

    I’ve been a thong guy since my early 20s and have tried pretty much every “premium” brand out there. Seriously, nothing I’ve ever worn even plays in the same league as the Vesuvius.

    The fabric is unreal, so thin and soft it honestly feels like you’re wearing nothing at all, yet it still gives proper support and keeps everything perfectly in place. The pouch is spot-on for my meat and two veg: roomy enough that there’s zero squeezing or readjusting, but secure enough that you forget it’s there.

    I’m genuinely planning to throw out every other pair I own and replace them all with Vesuvius thongs. If you’ve been on the fence, just do it. These are end-game underwear. 11/10.

  • PETER S.
    Verified Buyer
    Rated 5 out of 5 stars
    Next to naked

    Besides the obvious lack of coverage, these really do feel like there's nothing there. I was worried that the pouch may be a bit too extra, but in fact, it gives just enough support and the single layer of fabric affords nice wiggle room and breathability. Great for hot climates like S. Florida.

  • Brooks
    Verified Buyer
    Rated 5 out of 5 stars
    1st Thong - It Is AMAZING!

    I’m starting to wear more form fitting clothes these days and needed something more “no-show” and this pair delivered! Not only that, it is terrific for the gym when you need a little extra air flow during those tough workouts. The textile is so incredibly buttery soft and feels insanely comfortable. I really do love the seamlessness of the design, super nice. The star of the show is the pouch - your package falls perfect into the well thought-out pouch, and makes you look and feel huge. Instant boost of confidence! Honesty, I want to buy more colors. Another 10/10 from Alex and the Krakatoa team. Zero hesitation recommending this thong!

  • Jun C.
    Verified Buyer
    Rated 5 out of 5 stars
    Outstanding product and world-class service!

    I had a small issue where my initial package didn't arrive, but the seller was incredible—they immediately sent out a replacement with no hassle. It’s rare to find such dedicated customer service these days.

    As for the product itself, the Vesuvius thong is perfection. The seamless fabric is breathable, super comfortable, and fits like a second skin. I’m happy to support a small business that truly stands behind its products. Highly recommended!

  • Manuel R.
    Verified Buyer
    Rated 5 out of 5 stars
    Krakatoa delivers the goods!

    So after a favorite brand of mine closed their doors, I didn't think I was going to find a brand that could match the comfort; I was wrong. Krakatoa delivers an amazing product, so much so I turned around and ordered more as soon as I used my first pair. The thongs are incredibly comfortable. Not even going comando feels as comfortable as these thong do, and that's saying A LOT. Wish they made some for females, but I'm grateful that a brand cares this much for their product. Bravo, Krakatoa! I'm very happily wearing these in public, writing this review, and the moguls have no clue of the awesome thong Im strapping. Lol.