Sport Trunk, w/fly, Black

4.9 (2,419 reviews)
$26.00
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These black trunks are made from a 95% cotton / 5% elastane blend that stays breathable, soft, and flexible throughout daily wear. The three-part anatomical pouch with horizontal fly allows fast one-handed access and extra space without pressure. A wide curtain provides separation for stability, the broad gusset adapts to movement, and the leg hem binding keeps the fit in place during activity. With seamless sides to cut friction and a supportive cut that follows body dynamics, these trunks deliver reliable comfort for sports, office life, or casual use.

Performance Benefits
Breathable cotton blend — soft, durable, and skin-friendly
Three-part pouch — ergonomic shape with stable support
Horizontal fly — quick access, practical in daily use
Leg hem binding — prevents ride-up and curling
Seamless sides — smooth fit under clothing
4 cm waistband — secure hold without digging in
Everyday versatility — suitable for training or long-term wear

Tech Proof
Wicking: 1-3 mm/s
Drying: 10-20 g/h
Cooling: 1-2°C (1-3°F) vs. cotton baseline
Martindale: 10-15k

Three-part anatomical pouch — rounded fit with no deformation
Horizontal fly — functional, one-hand entry
Wide curtain — separates and stabilizes without squeezing
Double-layer pouch fabric — absorbs residual moisture
Broad gusset — reduces inner-thigh friction, enables mobility
Seamless sides — eliminates rubbing points
4 cm jacquard waistband — keeps its shape after washing
Leg hem binding — triple-fold finish to resist ride-up

95% cotton / 5% elastane
Breathable, elastic, recyclable
Suitable for daily wear and sports

Care instructions:
Wash at max 30°C (86°F)
Iron at low temperatures
Do not bleach
Do not tumble dry

*Color and decorative stitching may slightly differ from photos.

All available shipping options will be visible at checkout. We ship orders within 10-14 business days, but this can increase during promotional periods. All sales are final and cannot be returned for a refund or exchange. For more information, check out our Frequently Asked Questions page.

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Have a question? We’re here to help

Check out the most common questions our customers ask. If you need more help, please contact our support team.

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Our customer support is available Monday to Friday, from 10 AM to 7 PM.
What makes MAN’s SET underwear different?
MAN'S SET underwear is designed with a patented anatomical pouch for natural positioning, reduced friction, and maximum comfort. The construction is based on medical research to support male anatomy and reproductive health. We produce in our own facility to ensure consistent quality, and every model is focus-group tested for perfect fit and freedom of movement.
Where is MAN'S SET manufactured?
MAN'S SET underwear is proudly produced in our own facility in Ukraine. This lets us control every step of production and keep the highest quality standards in every pair.
Can I return or exchange underwear?
For hygiene reasons, underwear and socks can’t be returned. If your item has a manufacturing defect, we’re happy to exchange it. Please email info@manset.com.ua to request an exchange.
How can I contact support?
If you have any additional questions, please email us at info@manset.com.ua. Our team is happy to help!
What is shipping information?
We ship worldwide. For the United States:

Free Shipping: orders $65+, delivery in 10–14 days.
Priority Processing & Shipping Insurance: $21.55, ~10-day delivery; faster handling and extra protection.
Standard Shipping: $17.99, 10–14 days for orders up to $65.

At checkout you’ll see options and speeds for your country. Both standard and express shipping are available globally.