UltraSoft Trunk 3.6" Open Fly, Silver Series, White
Stop fixing your underwear - start focusing on your day
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| Size | Waist | Hips | Length | Inseam |
|---|---|---|---|---|
| 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 |
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Estimated Delivery:Dec 10 - Dec 14
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Free Shipping & Returns: On all orders over $100
UltraSoft Trunks 3.6" OpenFly – Silver Series, White
Premium men's underwear designed for everyday comfort and performance. These short boxer trunks feature a mid-rise fit and 3.6" inseam: ideal for daily wear, travel, or light activity.
A large open internal pouch with angled horizontal fly offers easy access, ventilation, and pressure relief. The open-fly pocket-style design with a soft fabric curtain provides secure support and minimizes overheating.
Crafted from a soft cotton-elastane blend (95% cotton, 5% elastane), these trunks deliver breathable stretch and a gentle fit. The cooling technology reduces body temperature by up to 1.5°C, while the ergonomic construction enhances airflow and freedom of movement.
Details include clean-cut hems that stay in place, a wide gusset for mobility, and a soft 4 cm waistband that holds without pinching.
Key Benefits:
Large open pouch with horizontal fly – discreet access and ventilation
Cooling tech – lowers skin temperature by up to 1.5°C
Premium fabric – breathable, soft underwear with lasting stretch
Modern fit – 3.6" inseam, mid-rise waist, boxer trunks style
Wide gusset & no-ride hems – ideal for work or sports
Soft waistband – secure, no marks
Part of the Silver Series, minimalist, functional, and clean. If you’re looking to buy men's underwear, these men’s boxer briefs are a top choice in premium underwear. A staple piece for anyone seeking soft underwear that performs all day.
*Decorative stitching and color may slightly vary from product images.
UltraSoft Trunk 3.6" Open Fly, Silver Series, White
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.
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.
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.
