Sport Trunk, w/fly, Navy

4.9 (2,419 reviews)
$26.00
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These navy trunks are crafted from a breathable cotton-elastane blend (95% cotton / 5% elastane) that combines softness with flexibility for all-day wear. The three-part anatomical pouch with horizontal fly provides fast one-handed access and provides extra space without pressure. A wide internal curtain ensures stable separation, while the reinforced gusset adapts to movement. Seam-free sides reduce friction under clothing, and elastic leg hems keep the fit secure, preventing ride-up. Designed for sport, office life, or casual use, these trunks deliver consistent comfort and support.

Performance Benefits
Soft, breathable cotton — durable and skin-friendly
Ergonomic pouch — three-part construction for stable support
Horizontal fly — convenient one-handed access
Leg hem binding — prevents ride-up and curling
Seam-free sides — smooth feel under clothes
4 cm waistband — secure hold without digging
Versatile use — ideal for training, office life, or daily 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 pouch — natural shape, no squeezing
Horizontal fly — fast one-handed entry
Wide curtain — provides comfortable separation and stabilization
Double-layer pouch fabric — absorbs moisture, stays dry
Reinforced gusset — supports muscle movement, reduces friction
Seam-free sides — eliminates rubbing points
4 cm jacquard waistband — maintains elasticity and shape
Elastic leg hem binding — triple-fold finish prevents curling and ride-up

95% cotton / 5% elastane
Soft, breathable, flexible
Suitable for sports, office life, and everyday use

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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WHY MAN’S SET?

MAN’S SET is designed to fit your body perfectly, supporting the natural position of your anatomy. The patented ball pouch, engineered for movement, eliminates chafing, adapts to your shape, and provides the precise support you need for any activity.

Man's SET pouch design close-up

ADVANCED ANATOMICAL CONSTRUCTION

Our patented anatomical design with a ball pouch provides precise separation and reduces friction. Developed through medical research, it supports reproductive health and ensures maximum comfort and freedom of movement throughout the day.

CRAFTED WITH ECO-FRIENDLY PREMIUM FABRICS

Made with soft, breathable, eco-friendly materials to keep you cool and dry all day long. Every pair is produced in our own facility, where we control every step of the process to guarantee the highest quality.

TAILORED FOR YOUR LIFESTYLE

With 11 exclusive designs, our collection is made to complement any wardrobe and occasion. The body-conforming fit moves with you and delivers performance that ensures a flawless look and feel.

Our Clients' Testimonials

Tested, and Loved by Men Like You

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.

Support Agent 1 Support Agent 2 Support Agent 3
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.