Name: ProActive Long Boxer Brief 9" OpenFly, Black
Brand: Man's Set
SKU: STB100-01
Price: 33.5 USD
Availability: InStock

Man’s SET ProActive black long boxer briefs with 9" inseam, moisture-wicking men’s underwear, front angle view

Man’s SET ProActive 9-inch black long boxer briefs, performance men’s underwear with open fly, front view

Man’s SET black ProActive 9-inch boxer briefs, breathable performance men’s underwear with open fly, close-up front view

Man’s SET ProActive 9-inch black boxer briefs, moisture-wicking performance men’s underwear, back view

ProActive long black boxer briefs by Man’s SET, athletic men’s underwear with ergonomic fit, angled back view

ProActive Long Boxer Brief 9" OpenFly, Black

Men’s Anatomical Underwear with Support Pouch, Moisture Control and Ultra Soft, Breathable Fabric, Structure Detail View

$33.50

Free shipping on orders over $60

📦 Shop more items and get a bigger discount:

Buy 2 items	7% off
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Why MAN’S SET?

Convenient Open Fly Design
High-performance Ball Pouch
Keeps You 1.5°C Cooler All Day
Moisture-Wicking Technology

Color — Black

Black

Size	Waist	Hips	Length	Inseam
S (44)	76–80	88–92	33.4–37.4	22.7–24.7
M (46)	80–84	92–96	33.8–37.8	22.7–24.7
L (48)	84–88	96–100	34.2–38.2	22.7–24.7
XL (50)	88–92	100–104	34.5–38.5	22.7–24.7
2XL (52)	92–98	104–110	34.9–38.9	22.7–24.7
3XL (54)	98–104	110–116	35.3–39.3	22.7–24.7

Size	Waist	Hips	Length	Inseam
S (44)	29.9–31.5	34.6–36.2	13.1–14.7	8.9–9.7
M (46)	31.5–33.1	36.2–37.8	13.3–14.9	8.9–9.7
L (48)	33.1–34.6	37.8–39.4	13.5–15	8.9–9.7
XL (50)	34.6–36.2	39.4–40.9	13.6–15.2	8.9–9.7
2XL (52)	36.2–38.6	40.9–43.3	13.7–15.3	8.9–9.7
3XL (54)	38.6–40.9	43.3–45.7	13.9–15.5	8.9–9.7

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- For the strong and big
- Reduce chafing between the legs
- Horizontal fly
- Classic anatomical pouch
- Polyester - (92%) / Elastane - (8%)
- 185±8% GSM fabric weight
- Nuts do not get pressed against the hip
- Reduced temperatures and improved ventilation
- Inseam 8.94 - 9.72

Anatomic Long Thermal Boxer Brief

Ready for your next mountain adventure? The Anatomic Long Thermal Boxer Briefs are your go-to for ultimate comfort and moisture control on any journey.

Why You’ll Love Them:

Anatomical Fit: Designed to keep you comfortable in the groin area, even on long hikes. Whether you're climbing a mountain or staying active, these boxers keep everything in place.
Moisture-Wicking Technology: Engineered with lightweight thermal fabric that efficiently wicks away moisture, keeping you dry and fresh throughout your hike.
Tested at the Top: Our founders took these to the peak of Mount Hoverla, ensuring they stand up to extreme conditions. Now, it’s your turn to experience unbeatable comfort and performance.

Key Features:

High-Performance Fabric: Thin, breathable thermal material for all-day comfort.
Perfect for Travel and Outdoor Adventures: Lightweight and designed for movement.

Experience the difference for yourself—reach the summit dry and comfortable!

Model Size

Model is Size L / Waist size 33.5 / Belt circumference 35.5 / Hip circumference 38.5

View Size Guide

Fit

Trunks
Horizontal fly
9.3 inseam

Polyester - (92%), elastane - (8%).

This product is made from OEKO-TEX® STANDARD 100 certified material which means it is free of harmful chemicals.

Care Instructions:
Machine wash cold 30°С
Gentle cycle
Only non-chlorine bleach when needed
Tumble dry low
Iron low

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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