UltraSoft Trunk 3.6" Open Fly, Mint

Stop fixing your underwear - start focusing on your day

Regular price $21.25
Sale price $21.25 Regular price $29.07
Unit price
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Mint
Size Guide
Man’s SET Classic underwear size guide showing waist, hips, length, and inseam measurements
SizeWaistHipsLengthInseam
S (44) 76–80 29.9–31.5 88–92 34.6–36.2 17.5–20 6.9–7.9 8.5–9.7 3.3–3.8
M (46) 80–84 31.5–33.1 92–96 36.2–37.8 17.9–20.4 7–8 8.5–9.7 3.3–3.8
L (48) 84–88 33.1–34.6 96–100 37.8–39.4 18.2–20.7 7.2–8.2 8.5–9.7 3.3–3.8
XL (50) 88–92 34.6–36.2 100–104 39.4–40.9 18.5–21 7.3–8.3 8.5–9.7 3.3–3.8
2XL (52) 92–96 36.2–37.8 104–108 40.9–42.5 18.9–21.4 7.4–8.4 8.5–9.7 3.3–3.8
3XL (54) 96–100 37.8–39.4 108–112 42.5–44.1 19.1–21.6 7.5–8.5 8.5–9.7 3.3–3.8
  • Estimated Delivery:Nov 26 - Nov 30

  • Free Shipping & Returns: On all orders over $100

Men's UltraSoft 3.6" Trunks in mint by Man's SET

Premium men’s UltraSoft Trunk 3.6" Open Fly in Mint, crafted for anatomical support, ultimate comfort, and unrestricted movement. These trunk feature a side-entry Open Fly, mid-rise front, and a three-section anatomical pouch that keeps organs naturally positioned without pressure. A medium dual-section inner pocket with angled entry ensures discreet and practical storage. The soft 4 cm branded waistband provides a secure but gentle fit, while the adaptive cut accommodates all body shapes.

Materials & Care:
Made from UltraSoft stretch cotton (95% cotton / 5% elastane) for breathable, soft, and durable wear. Retains shape and color even after repeated washes. Machine wash at 30°C, low iron, do not bleach, no tumble dry.

Performance & Benefits:
• Anatomical support — maintains natural organ positioning and supports male health
• Temperature regulation — pouch area stays ~1.5°C cooler for comfort and hygiene
• Reduced leg contact — minimizes friction and allows freedom of movement
• Breathable fabric — keeps skin dry and fresh throughout the day
• Durable design — retains shape and color after multiple washes
• Versatile comfort — perfect for daily wear, active use, or sports

Tech Proof: 
• Wicking 1-3 mm/s 
• Drying 10-20 g/h 
• Cooling 1-2°C 
• Martindale 10-15k

Refresh your underwear collection with the mint Men's UltraSoft 3.6" Trunks. Shop now for all-day comfort, anatomical support, and modern fit.

• Anatomical support — promotes reproductive health and maintains optimal testosterone levels
• Temperature regulation — pouch stays up to 1.5°C cooler, preventing overheating and supporting healthy microflora
• Reduced leg contact — less friction, more freedom
• Breathable material — ensures comfort and dryness throughout the day
• Freedom of movement — comfortable even during rigorous activity
• Durability — retains shape and color after repeated washing
• Versatility — suitable for daily wear and sports

Soft stretch cotton — breathable, gentle, and long-lasting.

Care instructions:
• Wash at max 30°C
• Iron at low temperature
• Do not bleach
• Do not tumble dry

*Color and decorative stitching may differ slightly 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.

UltraSoft Trunk 3.6" Open Fly, Mint

UltraSoft Trunk 3.6" Open Fly, Mint

Free Delivery on orders over $100

Peak Performance from MAN’S SET

Advanced Moisture Control – wicks sweat away from your skin up to 3× faster, keeping you dry when it matters most.

Quick‑Dry Technology – dries in as little as 20 minutes, so you stay light and ready to move.

Odor‑Resistant Finish – antimicrobial treatment fights odor‑causing bacteria, even during intense workouts.

Built to Last – maintains shape, stretch, and performance wash after wash — 100+ cycles strong.

From the Founder of MAN’s SET

“Underwear should do more than just fit — it should work with your body. That’s why we created MAN’s SET Anatomic Underwear. Made from ultra-soft MicroModal, it adapts to your form, keeps you cool, and supports you exactly where you need it. It’s not just comfort — it’s confidence, engineered for every day. Once you try it, you’ll never go back to ordinary underwear.”

Trusted by many

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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 anatomical design
01

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.

02

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.

03

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.

01

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.

02

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.

03

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.