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Haleakala Trunks

Haleakala Trunks

4.9
Rated 4.9 out of 5 stars
303 Reviews
Regular price $ 34.00 USD
Regular price $ 28.00 USD Sale price $ 34.00 USD
Sale Sold out

4" Deep StratoPouch, Seamless Hems, 1.5" inseam, 95% MicroModal

Size Guide
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📦 Orders ship within 1-2 business days

The Details

The Trunk, perfected.

Sporting the new StratoPouch, an extra-large 4" front pouch with a breathable liner, the Haleakala Trunks are the sportiest Trunk of the line up.

With a shorter inseam and ultra-low profile seamless hems, they contour around your crotch and move with you without bunching up, perfect for strenuous exercise without restrictions.

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.

Legs that don't roll up or bunch up.

Inseam: 1.5 inch

52 Wash Guarantee. Because we can.

1st Order Fit Guarantee

Our number one goal is that you're happy with your purchase.

If something doesn't fit right on your regular priced Krakatoa, let us know and we will work with you to make it right.

They are usually a bit more snug when brand-new, so give it a wear and a wash to reach their final shape.

If you purchase multiple pairs, make sure you ONLY TRY ON ONE PAIR and make sure it's perfect on you.

Beyond the first pair, all underwear must be unworn, unwashed, in the original condition and packaging that you received them for an exchange or refund.

52 Wash Guarantee

We've built a tough product with advanced stitching, and the very best materials we could get our hands on.

That said, you should follow the care instructions: wash it cold and dry in medium temperatures with similar soft fabrics, for best results and durability.

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 just the cost of shipping.

Free US Shipping on Orders $75+

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

View full details

I'm Alex, I made these for you.

Find your size

You'll need a a pair of your existing underwear, a flat surface, and a measuring tape.

THE FEATURES YOU ASKED FOR

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

THE STRATOPOUCH
Deep and Roomy

Say goodbye to readjustments.
The large StratoPouch, a 4" deep front pouch with a breathable and antimicrobial liner, is engineered to separate you from your thighs and keep you comfortably dry and supported. Perfect for sports, and hot and humid days. 

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.

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 Haleakala.

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.

HEY ALEX, I HAVE QUESTIONS!

What's StratoPouch?

Men come in all different shapes and sizes but for years underwear failed to respect our anatomy.
The StratoPouch is expertly crafted to provide optimal support and breathability for most men. Designed with a deeper, narrower shape and increased volume, it offers a perfect balance of separation and comfort.
Say goodbye to constant adjustments—sticking to your leg is now a thing of the past. The new internal liner is a game-changer: perforated for breathability, anti-microbial for odor resistance, and incredibly smooth to prevent any sticking, even during those happy moments.
Because it was time someone did it right for us guys.

What's the composition of the liner?

The liner inside the StratoPouch is made of 63.3% Viscose, 27.7% Polyester, 4% Nylon and 5% Spandex.

What should I know about the fit?

The Haleakala Trunk is designed with a shorter 1.5" inseam. The seamless legs are designed to stay put. The larger pouch is designed to be large enough to provide you room, while being lined for greater breathability and 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.

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.

Our pouch is 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?

Our number one goal is that you're happy with your purchase.

If something doesn't fit right on your regular priced Krakatoa, 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 regular priced 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 multiple pairs, make sure you try ONLY ONE PAIR for fitting before you decide to use the rest.

INTRO PAIRS ARE FINAL SALE AND NOT RETURNABLE.

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'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 just the cost of shipping.

WHICH TRUNK 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:

  • Sealed, Lined StratoPouch
    4" Sealed Pouch
    Seamless Hems
    1.5" Inseam

    Learn More 
  • U-Shaped Caldera Pouch
    Low-Profile StealthFly
    Seamless Hems
    1.5" Inseam

    Learn More 
  • The Original
    3" Sealed Pouch
    Stitched Hems
    2" Inseam

    Learn More 
  • 3" Low-Seam Pouch
    Top Horizontal Fly
    Stitched Hems
    2" Inseam

    Learn More 

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 303 reviews
Total 5 star reviews: 280 Total 4 star reviews: 18 Total 3 star reviews: 3 Total 2 star reviews: 1 Total 1 star reviews: 1
87%would recommend these products
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303 reviews
  • Orville K.
    Verified Buyer
    Haleakala Trunks
    Reviewing
    Haleakala Trunks
    Rated 5 out of 5 stars
    Excellent - will buy again

    After a couple of washes and wearings, I am still very impressed by the quality and comfort of this underwear. Just placed my second order and this underwear will be my staple going forward. Highly recommend

  • James L.
    Verified Buyer
    Haleakala Trunks
    Reviewing
    Haleakala Trunks
    Rated 5 out of 5 stars
    Haleakala trunks lined

    Was unsure about lined, totally amazed with how they feel. I was at docs and was handed a pair of paper boxers because the nurse told me to take off my shorts and just leave your boxers. She thought I had nothing on under my shorts I said I did. So I had my exam and the female doc asked me what kind of boxers they were.I told her krakatoas, I explained and showed her they were the lined trunks. She was totally impressed,loved the band and material

  • Orville
    Haleakala Trunks
    Reviewing
    Haleakala Trunks
    Rated 5 out of 5 stars
    5 Stars

    Great fit and construction. I was pleasantly surprised by the quality. Will buy more!

  • John m g.
    Verified Buyer
    Haleakala Trunks
    Reviewing
    Haleakala Trunks
    Rated 5 out of 5 stars
    Love these

    Was an anti gravity guy and gave these a try and love them. Pouch is lined which is great as a gym goer and the waistband and material are top tier. Can’t wear any other brand of underwear anymore

  • John F.
    Verified Buyer
    Haleakala Trunks
    Reviewing
    Haleakala Trunks
    Rated 5 out of 5 stars
    Great Trunks

    These trunks are so comfortable. The length is perfect. I do not like a lot of material on my legs. The pouch is super comfortable. It is like going commando. I will be buying this style again.

  • Robert S.
    Verified Buyer
    Haleakala Trunks
    Reviewing
    Haleakala Trunks
    Rated 5 out of 5 stars
    Over 200 miles on the John Muir Trail!!

    If you're looking for the perfect combination of comfort and durability for a long-distance hike, the Krakatoa Haleakala Trunks deserve serious consideration. I wore these trunks for the entirety of my 211-mile John Muir Trail hike, and they exceeded my expectations in several key areas.

    Comfort:

    The first thing that stood out was how comfortable these trunks were, even after long days on the trail. The soft, lightweight fabric felt great against my skin, preventing chafing—a major plus when you're trekking for hours on end with a loaded pack. The fit was secure without being restrictive. Even during the hottest parts of the day, the breathability of the fabric kept me cool, and the material wicked away sweat effectively, ensuring I stayed dry.

    Endurance:

    Equally impressive was the durability of the Haleakala Trunks. Over the course of 211 miles, through rough terrain, stream crossings, and varying weather conditions, the trunks held up incredibly well. They showed no signs of wear, even after repeated exposure to the elements. The reinforced stitching and quality of materials ensured that they didn’t tear or degrade, and their quick-drying properties were a lifesaver when encountering streams or sweat. I never had to worry about them slowing me down.

    Final Thoughts:

    The Krakatoa Haleakala Trunks are the perfect companion for long-distance hikes like the John Muir Trail. They provide excellent comfort during long days, and their endurance against the elements is…

  • Trevor L.
    Verified Buyer
    Haleakala Trunks
    Reviewing
    Haleakala Trunks
    Rated 5 out of 5 stars
    Super comfortable, great fit

    These are great. They fit as advertised, are extremely comfortable, overall highly recommend!

  • Gregory S.
    Verified Buyer
    Haleakala Trunks
    Reviewing
    Haleakala Trunks
    Rated 5 out of 5 stars
    Best Underwear!

    Best trunks I've ever had. Waistband doesn't flip, and very comfortable.

  • George L.
    Verified Buyer
    Haleakala Trunks
    Reviewing
    Haleakala Trunks
    Rated 5 out of 5 stars
    All in on Krakatoa!

    I have tried every brand from underarmour to saxx to thieves to Nike to even lulu lemon! on and on…none are even close to the comfort and support of Krakatoa. Ordered 1 of each type to test and I was so pleased that I just ordered 5 pair of thongs and 5 of 7 inch briefs…my underwear drawer is about to get renovated!

  • Russ D.
    Verified Buyer
    Haleakala Trunks
    Reviewing
    Haleakala Trunks
    Rated 5 out of 5 stars
    So soft

    I am very pleased with the way they fill.

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