ProActive Sport Boxer Brief 3", Black
Tested in workouts, approved for everyday life
SAVE BIG WITH OUR PACKS
| Size | Waist | Hips | Length | Inseam |
|---|---|---|---|---|
| S | 76-80 29.9-31.5 | 88-92 34.6-36.2 | 31.7-34.3 12.5-13.5 | 18.7-20.3 7.4-8.0 |
| M | 80-84 31.5-33.1 | 92-96 36.2-37.8 | 32.7-35.3 12.9-13.9 | 18.7-20.3 7.4-8.0 |
| L | 84-88 33.1-34.6 | 96-100 37.8-39.4 | 34.7-37.3 13.7-14.7 | 18.7-20.3 7.4-8.0 |
| XL | 88-92 34.6-36.2 | 100-104 39.4-40.9 | 35.7-38.3 14.0-15.1 | 18.7-20.3 7.4-8.0 |
| 2XL | 92-96 36.2-37.8 | 104-108 40.9-42.5 | 37.7-40.3 14.8-15.9 | 18.7-20.3 7.4-8.0 |
| 3XL | 96-100 37.8-39.4 | 108-112 42.5-44.1 | 38.7-41.3 15.2-16.3 | 18.7-20.3 7.4-8.0 |
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Estimated Delivery:Nov 26 - Nov 30
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Free Shipping & Returns: On all orders over $100
Ultra-thin mesh curtains, adjustable volume pouch, and no-ride construction for nonstop days.
When the day doesn’t blink, neither can your base layer. Adjustable volume dials in support for your body and your mission. The ultra-mesh curtains separate and ventilate, the narrow ergonomic gusset frees the hips, the no-ride legs stay put under miles and armor. Anti-odor. Quick-dry. Office, range, travel: one layer built for everything.
Performance Benefits:
Custom fit — adjustable pouch volume for variable activities and climates
Vent where it matters — ultra-mesh keeps the micro-climate cool
Friction off — narrow gusset + smooth finishes reduce rubbing
Stays fresh — antimicrobial, low-odor for extended wear
Field-ready — durable knit, shape retention, easy care
Tech Proof:
Mesh drying speed: 120-160 g/h
Cooling effect: up to 6-7°C (10-12°F)
Shape recovery: 90-95%
ProActive Sport Boxer Brief 3", Black
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.
