The Trunk | Underwear for the Modern Man

Engineered for vitality. CARGO keeps you cool, comfortable, and naturally supported so you can move freely and feel your best, all day and night.

$37.00

Charcoal

Single

Try it out and feel the difference

3-Pack

Triple the comfort

Save 15%

7-Pack

Go big and save big

Save 22%

pre-order

Free Shipping & Returns in the US

95% Bamboo Viscose, 5% Elastane

No Polyester, No PFAS

Tagless for added comfort.

Designed with a roomy yet supportive fit where it matters, giving extra space in the front and a breathable, structured hold. A tailored cut through the legs prevents riding up and chafe. Standard US male sizing.

This item is a pre-order and will ship in 6 to 8 weeks. Standard US delivery takes 5 to 7 days, international 7 to 10 days after dispatch. Returns accepted on unworn, unwashed items within 30 days.

What Men Say

Works really great!

“Honestly feels like AC for your arse. Way less swampy at the end of the day.”

8 Oct 2024

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Dylan, 29

Morning boost, no joke

"Bit weird to say, but I’ve noticed a difference in the mornings, if you catch my drift. More activity than usual."

5 Sept 2024

—

Johnathan, 24

Actually engineered for men

"Feels like someone actually designed these with balls in mind. No sticking, no weird shifting, just comfort."

22 Dec 2024

—

Martin, 35

Better sleep, better mornings

"It’s subtle, but after a few weeks I’m sleeping better, feeling better, and yeah… standing taller in the mornings."

2 Nov 2024

—

Zac, 23

Upgrade your underwear

Built Different.

Feature

Polyester-Free

No Endocrine Disrupting Chemicals

3° Cooler

Anti-Chafe

All-Day Comfort

Toxin Free

No PFAS, no endocrine disruptors

T-Boost Tech

Engineered cooling to optimise testosterone levels

Stronger Swimmers

Cooler temps, stronger swimmers

Next-Gen Comfort

Maximum airflow, chafe-free , all-day freshness

Manifesto

Go where no you has gone before. In today’s modern world, there is more to aspire to than ever before. You can be anything, do anything, dream anything. HI°BRID will help you get there — wherever "there" is.

FAQs

Yes. Bamboo viscose regulates temperature better than cotton and wicks moisture naturally. It’s engineered for all-day comfort and breathability.

The skin around the scrotum is the most absorbent on the male body. We avoid PFAS, polyester, and other synthetic chemicals for a reason.

Our fabric blend uses bamboo viscose (a natural, breathable fibre) and a small amount of spandex for stretch and comfort. No harsh stuff.

We’re working on it—new drops are coming soon. We believe great design should evolve with real needs, not hype. Sign up to stay in the loop.

Absolutely. We offer free size exchanges. Unworn pairs can be returned within 30 days—no drama.

Our package is getting bigger...

SHOP TRUNK

COMING SOON!

COMING SOON!

COMING SOON!

776

5-star reviews*

Men are finally talking about this...

Lifechanging Undies

@jimmmyd

Avoiding Polyester

@doctorsteve

Total Comfort

@alexgarcia

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