---
product_id: 63665311
title: "SHEATH 3.21 Men's Boxer Brief Underwear with Dual Support Pouch | Moisture Wicking Breathable Cooling Modal (5\" Inseam)"
brand: "sheath"
price: "$52.98"
currency: USD
in_stock: true
reviews_count: 13
category: "Sheath"
url: https://www.desertcart.us/products/63665311-sheath-3-21-mens-boxer-brief-underwear-with-dual-support
store_origin: US
region: United States of America
---

# Modal blend wicks moisture & cools 5" inseam for perfect mid-thigh fit Dual pouch for superior support & comfort SHEATH 3.21 Men's Boxer Brief Underwear with Dual Support Pouch | Moisture Wicking Breathable Cooling Modal (5" Inseam)

**Brand:** sheath
**Price:** $52.98
**Availability:** ✅ In Stock

## Summary

> 🔥 Elevate your essentials with support that works as hard as you do!

## Quick Answers

- **What is this?** SHEATH 3.21 Men's Boxer Brief Underwear with Dual Support Pouch | Moisture Wicking Breathable Cooling Modal (5" Inseam) by sheath
- **How much does it cost?** $52.98 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/63665311-sheath-3-21-mens-boxer-brief-underwear-with-dual-support)

## Best For

- sheath enthusiasts

## Why This Product

- Trusted sheath brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Next-Level Support:** Innovative dual pouch design separates and supports for unmatched comfort and airflow.
- • **Stay Cool, Stay Dry:** Ultra-soft 92% Modal fabric wicks sweat and breathes to keep you fresh under pressure.
- • **Ride-Free Confidence:** 5-inch inseam locks in place to prevent chafing and ride-up all day.
- • **Built to Last & Impress:** Durable construction resists wear and maintains shape wash after wash—your new daily essential.
- • **Comfort That Moves With You:** High-stretch fabric and covered waistband deliver a snug, irritation-free fit no matter the activity.

## Overview

SHEATH 3.21 Men's Boxer Briefs combine a perfect 5-inch inseam with a patented dual pouch system crafted from a breathable, moisture-wicking modal-spandex blend. Designed for active professionals, these boxer briefs deliver superior support, comfort, and durability, ensuring all-day freshness and a sleek fit that resists ride-up and irritation.

## Description

Buy SHEATH 3.21 Men's Boxer Brief Underwear with Dual Support Pouch | Moisture Wicking Breathable Cooling Modal (Black - 3X-Large) and other Boxer Briefs at desertcart.com. Our wide selection is elegible for free shipping and free returns.

Review: These are the most comfortable, smartest boxer briefs I have ever worn! - These are AWESOME! I just got them, and I changed into them from my favorite brand of boxer briefs as soon as they arrived. The fit is perfect, and the inner pouch along with the other opening for your junk keeps everything separated and comfy. No binding when sitting down or stooping, and they keep the boys from sticking to your thighs. They are made of a stretchy, wicking material and feel great. The waistband so far is not doing any rollovers, and the leg openings are staying put. These are expensive, but worth every penny. I will need to have a week's worth of these on hand! STRONGLY recommend. I wish the makers would send me a complimentary pair! EDIT: Okay, I am still in love with these boxer briefs. I have now washed them at least a dozen times, and they look and feel and fit exactly the same as they did when I bought them! This means that there will not be the stretched out waistband, raggedy edges or tiny holes which form in cotton boxer briefs. I will be purchasing more Sheath underwear, but now am curious about the 4.0 version.
Review: Most comfortable underwear ever! - I never do product reviews, but i have to on this one. These underwear are amazing. They are soft and very stretchy so they comfortably conform to your body. Absolutely no wedgies even when exercising. The way the pockets cradle your junk is great. Keeps the twig and berries in front of you, no more in between your thighs. Added benefit is you get a rather impressive bulge to let people know their os something doen there. My girl said they are so hot 🔥 Good confidence booster. Also no more sticki g together or to your leg. Not enough good things to say about these. I am throwing away all my other underwear and buying a buch of these. Also, if you are in between sizes even a little bit go a size down. I always wore a medium but i got smalls on these and i am glad i did. They stretch so much that the small is perfect for me.

## Features

- 5” Inseam for the Perfect Mid-Thigh Fit – These men’s boxer briefs feature a standard 5-inch inseam, offering excellent coverage while preventing ride-up and chafing, making them ideal for everyday wear or active lifestyles.
- Innovative Dual Pouch with Vertical Fly – Designed for superior ball support, the dual pouch system provides separate compartments to enhance comfort, reduce friction, and improve breathability for all-day freshness.
- Ultra-Soft Modal Blend – Moisture-Wicking & Breathable – Made from 92% Modal and 8% Spandex, these moisture-wicking underwear for men offer unbeatable softness, breathability, and sweat control, keeping you cool and dry.
- Fabric-Covered Elastic Waistband for Ultimate Comfort – Featuring a soft, non-irritating waistband, these men’s underwear boxer briefs ensure a snug fit without pinching or digging into your skin.
- Durable & Stretchable for Maximum Mobility – Designed for endurance, these athletic boxers for men provide superior flexibility and a second-skin feel, making them perfect for workouts, lounging, and daily wear.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09XFJNK36 |
| ASIN  | B0BPJ3FFKM |
| Age Range Description | Adult |
| Apparel Fabric Stretch | High Stretch |
| Apparel Fabric Weight Class | Lightweight |
| Best Sellers Rank | #132,550 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #450 in Men's Boxer Briefs |
| Bottom Style | Boxer Briefs |
| Brand Name | SHEATH |
| Color | Black |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,035) |
| Date First Available  | April 10, 2018 |
| Department  | mens |
| Fabric Type | Modal |
| Garment Size Country | United States |
| Item Type Name | Boxer Briefs |
| Item Weight | 3 Ounces |
| Item model number  | 3.21 |
| Manufacturer  | SHEATH underwear |
| Manufacturer Part Number | 3.21 |
| Material Type | Modal |
| Package Dimensions  | 9 x 7 x 0.5 inches; 3 ounces |
| Pattern | Solid |
| Product Care Instructions | Machine Wash |
| Rise Style | Mid |
| Size | 3X-Large |
| Sport Type | Multi-Sport |
| Style Name | Modern/Fitted |
| Style Number | 3.21 |
| Subject Character | UFC |
| UPC | 818467028167 |
| Unit Count | 1 Count |

## Images

![SHEATH 3.21 Men's Boxer Brief Underwear with Dual Support Pouch | Moisture Wicking Breathable Cooling Modal (5" Inseam) - Image 1](https://m.media-amazon.com/images/I/41DbUCtKCjL.jpg)
![SHEATH 3.21 Men's Boxer Brief Underwear with Dual Support Pouch | Moisture Wicking Breathable Cooling Modal (5" Inseam) - Image 2](https://m.media-amazon.com/images/I/51r4amaNYVL.jpg)
![SHEATH 3.21 Men's Boxer Brief Underwear with Dual Support Pouch | Moisture Wicking Breathable Cooling Modal (5" Inseam) - Image 3](https://m.media-amazon.com/images/I/51adjCsDA+L.jpg)
![SHEATH 3.21 Men's Boxer Brief Underwear with Dual Support Pouch | Moisture Wicking Breathable Cooling Modal (5" Inseam) - Image 4](https://m.media-amazon.com/images/I/41E+qQTMqyL.jpg)
![SHEATH 3.21 Men's Boxer Brief Underwear with Dual Support Pouch | Moisture Wicking Breathable Cooling Modal (5" Inseam) - Image 5](https://m.media-amazon.com/images/I/41kc7Ao5QBL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Questions & Answers

**Q: Whats the waist measurement for tge small size boxers?**
A: 30/32, im a M and their measurements are 32/34

**Q: Should I be putting these in the dryer to maintain fit? After my first wear they now fit loose**
A: I put mine in the dryer

**Q: Is my member supposed to be place in the hole?**
A: Yes, sir -- that's exactly where it goes.  Should be a pouch your package travels in, too.  I find this style a bit odd, but comfortable.

**Q: Are these real "Sheath" brand?**
A: Yes

## Customer Reviews

### ⭐⭐⭐⭐⭐ These are the most comfortable, smartest boxer briefs I have ever worn!
*by P***N on January 12, 2018*

These are AWESOME! I just got them, and I changed into them from my favorite brand of boxer briefs as soon as they arrived. The fit is perfect, and the inner pouch along with the other opening for your junk keeps everything separated and comfy. No binding when sitting down or stooping, and they keep the boys from sticking to your thighs. They are made of a stretchy, wicking material and feel great. The waistband so far is not doing any rollovers, and the leg openings are staying put. These are expensive, but worth every penny. I will need to have a week's worth of these on hand! STRONGLY recommend. I wish the makers would send me a complimentary pair! EDIT: Okay, I am still in love with these boxer briefs. I have now washed them at least a dozen times, and they look and feel and fit exactly the same as they did when I bought them! This means that there will not be the stretched out waistband, raggedy edges or tiny holes which form in cotton boxer briefs. I will be purchasing more Sheath underwear, but now am curious about the 4.0 version.

### ⭐⭐⭐⭐⭐ Most comfortable underwear ever!
*by B***Y on December 30, 2022*

I never do product reviews, but i have to on this one. These underwear are amazing. They are soft and very stretchy so they comfortably conform to your body. Absolutely no wedgies even when exercising. The way the pockets cradle your junk is great. Keeps the twig and berries in front of you, no more in between your thighs. Added benefit is you get a rather impressive bulge to let people know their os something doen there. My girl said they are so hot 🔥 Good confidence booster. Also no more sticki g together or to your leg. Not enough good things to say about these. I am throwing away all my other underwear and buying a buch of these. Also, if you are in between sizes even a little bit go a size down. I always wore a medium but i got smalls on these and i am glad i did. They stretch so much that the small is perfect for me.

### ⭐⭐⭐⭐ Happy investment.
*by K***. on July 24, 2023*

I was hesitant on the price to dish out this much initially but am pleasantly surprised. Best dual pouch I've found so far. Really comfy, the ball pouch actually holds your nugs when other brands just give you a little extra space that can still cause your sac to get bunched up under your butt. The pouch completely hold your jewels in place with enough room for them to wander as they please. Would/will buy again. the fabric is a nice material but the only thing I would change is maybe using a bamboo material that breaths better. These breath fine but are a bit warmer compared to my less comfortable dual pouch underwear that I was wearing regularly before these. would recommend

## Frequently Bought Together

- SHEATH Men's Underwear with Dual Pouch 3.21 Fly Boxer Briefs
- SHEATH Mens Underwear with Pouch 4.0 Men's Modal Dual Pouch Boxer Briefs Underwear
- SHEATH Mens Underwear with Pouch | V Men's 8" Sports Performance Boxer Brief | Dual Pouch, Athletic Fit

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-04-27*