Name: ProActive Stretch Trunk 3.2" OpenFly, Red
Brand: Man's Set
SKU: SBS120-07
Price: 21.5 USD
Availability: InStock

Man’s SET ProActive Stretch Trunk in red, 3.2" OpenFly anatomical men’s underwear with contour pouch, front angle view

Red ProActive Stretch Trunk 3.2" OpenFly by Man’s SET, breathable anatomical men’s underwear with comfort pouch, front view

Men’s underwear technology graphic showing ultra soft fabric, support pouch, and moisture control by Man's SET

Man’s SET red ProActive Stretch Trunk 3.2" OpenFly, anatomical men’s underwear with supportive pouch, close-up front view

Man’s SET red ProActive Stretch Trunk 3.2" OpenFly, breathable men’s underwear with black trim, back view

Man’s SET ProActive Stretch Trunk 3.2" OpenFly in red, anatomical men’s underwear with black waistband, angled back view

$21.50

Shipping calculated at checkout.

Why MAN’S SET?

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

Color — Red

Red

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Free shipping on orders over $65

In stock, ready to ship
Backordered, shipping soon

- For the strong and big
reduce chafing between the legs
- Horizontal fly
- Classic anatomical pouch
- 95% Cotton / 5% Elastane
- 185±8% GSM fabric weight
- Nuts do not get pressed against the hip
- Reduced temperatures and improved ventilation
- Inseam 2.91" - 3.43"

ProActive Stretch Boxer Briefs

Introducing the ProActive Stretch Boxer Briefs—designed for active men who need comfort and reliability during every workout. These boxers feature elastic leg bands that prevent the fabric from riding up, ensuring you stay focused on your performance, not on adjusting your underwear.

Why You'll Love Them:

Elastic Leg Bands: Keep the boxers securely in place, preventing them from riding up during movement.
Convenient Top Access: Provides easy, quick access when needed.
Slightly Shorter Length: A more streamlined fit compared to the Classic, perfect for both everyday wear and intense training sessions.
Everyday Versatility: Ideal for daily use, offering comfort and support in any situation.
With Anatomic Sport Boxers, you’ll never have to worry about adjustments during your workout. Experience the perfect balance of function and comfort—whether you’re hitting the gym or going about your day.

- For the strong and big
- Reduce chafing between the legs
- Horizontal fly
- Classic anatomical pouch
- 95% Cotton / 5% Elastane
- 185±8% GSM fabric weight
- Nuts do not get pressed against the hip
- Reduced temperatures and improved ventilation
- Inseam 2.91 - 3.43

ProActive Stretch Boxer Briefs

Introducing the ProActive Stretch Boxer Briefs—designed for active men who need comfort and reliability during every workout. These boxers feature elastic leg bands that prevent the fabric from riding up, ensuring you stay focused on your performance, not on adjusting your underwear.

Why You'll Love Them:

Elastic Leg Bands: Keep the boxers securely in place, preventing them from riding up during movement.
Convenient Top Access: Provides easy, quick access when needed.
Slightly Shorter Length: A more streamlined fit compared to the Classic, perfect for both everyday wear and intense training sessions.
Everyday Versatility: Ideal for daily use, offering comfort and support in any situation.
With Anatomic Sport Boxers, you’ll never have to worry about adjustments during your workout. Experience the perfect balance of function and comfort—whether you’re hitting the gym or going about your day.

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
3.2 inseam

Cotton (95%), elastane (5%).

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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Why MAN’S SET?

Because comfort starts with anatomy.

Our patented pouch supports the natural shape of your body, eliminating chafing and moving with you all day.

Advanced Anatomical Construction

Our patented anatomical design with a ball pouch provides precise separation and reduces friction. Developed based on 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, and eco-friendly materials to keep you cool, dry all day long. Every pair is produced in our own facility, where we control every step of the process to ensure the highest quality.

Tailored for Your Lifestyle

With 11 exclusive designs, our collection is made to match any wardrobe and occasion. With a body-conforming fit that moves with you and 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 have any additional questions, please contact our customer support.

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 ball pouch for natural positioning, reduced friction, and maximum comfort. The construction is based on medical research to support male anatomy and reproductive health. Each pair is made in our own facility to ensure consistent quality. All models undergo focus group testing to guarantee a 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 allows us to maintain full control over every step of the production process, ensuring the highest quality standards in every pair.

Can I return or exchange underwear?

Underwear and socks cannot be returned due to hygiene reasons. However, if your item has a manufacturing defect, we are happy to offer an exchange. Please contact us at info@manset.com.ua to request an exchange for a defective item.

How Can I Contact Support?

If you have any additional questions, please feel free to contact us at info@manset.com.ua. Our support team is available 24/7 to assist you!

What is Shipping Information?

We offer worldwide shipping. For the United States, the available options are:

• Free Shipping: Orders $60 and up, delivery in 10–14 days.
• Priority Processing & Shipping Insurance: $21.55, delivery in 10 days, includes expedited handling and added security for your package.
• Standard Shipping: $17.99, delivery in 10–14 days for orders up to $60

You can find detailed shipping options and speeds for your country at checkout. Both standard and express shipping are available globally.