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¹Offer subject to credit approval. During the offer period, new accounts that qualify will earn a $50 statement credit instead of a $30 statement credit that you may see otherwise advertised. To qualify, you must (i) apply and be approved for a Sam’s Club credit card account between June 24, 2026—July 7, 2026 and (ii) use your new account to make Sam’s Club purchases totaling $30 or more (excluding cash advances, gift card sales, alcohol, tobacco and pharmacy purchases) within 30 days of date of account opening. When you open an account online or with your mobile device, purchases cannot be made at in-club registers until the physical card is received. Your physical card should arrive in 7–10 business days from date of account opening. A $50 credit will post to the account within 90 days after the qualifying purchases are made. Offer is valid for newly opened accounts only and each account is eligible for only one $50 offer, in lieu of, and not in addition to, any advertised $30 offer.

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Under Armour Boys 3-Pack  Performance Boxer Brief

Instructions

<h3>Performance-Driven Design for Active Boys</h3> <p>Under Armour transforms everyday essentials with its boys’ sport boxerjock 3-pack, combining bold novelty prints and versatile solids for a fun, energetic, and athletic look. Featuring splatter-inspired graphics, playful patterns, and vibrant color pops, these boxerjocks are designed to excite and inspire active lifestyles.</p> <h3>Lightweight Fabric for Comfort and Movement</h3> <p>Crafted from a lightweight polyester and elastane jersey knit, the fabric is soft, breathable, and stretches naturally with the body. It wicks away moisture and dries quickly, ensuring cool and comfortable wear during school days, sports practice, and weekend adventures. Unlike basic cotton underwear, this performance blend maintains its shape and support, wash after wash.</p> <h3>Thoughtful Construction for Everyday Durability</h3> <p>Designed with comfort and durability in mind, these boxerjocks feature a soft elastic waistband with Under Armour branding that stays securely in place. Smooth flatlock seams reduce irritation, while reinforced stitching adds strength in high-motion areas. The streamlined silhouette offers comfortable coverage and stays put under shorts, joggers, or uniforms.</p> <h3>Elevating Basics with Trusted Quality</h3> <p>Rooted in Under Armour’s legacy of innovation, this 3-pack delivers technical fabric, durable construction, and standout design. It’s a dependable foundation layer that supports active lifestyles, enhances comfort, and provides the trusted quality families expect from a leading athletic brand.</p>

Color

Brand

<ul>  <li>Boys 3-pack performance boxer briefs with 4-inch inseam featuring a mix of bold prints and versatile solid colors</li>  <li>Smooth and breathable stretch jersey fabric feels lightweight while helping wick away moisture for all day comfort</li>  <li>Supportive athletic fit with flexible waistband and stay-put legs for secure coverage that moves with him</li>  <li>Logo waistband helps keep underwear secure during activity</li>  <li>4-way stretch construction&nbsp;</li>  <li>Machine washable fabric is designed to hold its shape color and performance wear after wear</li> </ul>

Specifications

title_store_delivery_instore_pickup

<ul>
<li>Boys 3-pack performance boxer briefs with 4-inch inseam featuring a mix of bold prints and versatile solid colors</li>
<li>Smooth and breathable stretch jersey fabric feels lightweight while helping wick away moisture for all day comfort</li>
<li>Supportive athletic fit with flexible waistband and stay-put legs for secure coverage that moves with him</li>
<li>Logo waistband helps keep underwear secure during activity</li>
<li>4-way stretch construction&nbsp;</li>
<li>Machine washable fabric is designed to hold its shape color and performance wear after wear</li>
</ul>

Actual Color

Black Pack

Blue/Black Pack

Blue/Orange Pack

Size

Comfy and stretchy boys boxer briefs. These are approved by my 10 year old as cool and comfortable. They are true to size. There are two solid colored briefs and a printed brief. Machine washable. My only complaint is I wish they were cotton instead of polyester.

Comfy, kid approved boxer briefs

My son loved these boxer briefs cuz they are incredibly comfortable and the fabric is soft, breathable, and moisture-wickingy, which keeps him dry during his track practice and all-day wear too. He also mentioned that they are a bit snug but not too tight which is something he greatly loves since they make him agile. I would highly recommend these Under Armour Sport Boys Boxer Jock Briefs for any parent looking for reliable and comfortable underwear for their boys!

Comfortable and Breathable

My kiddos really like these underwear. They are light, stretchy and breathable. I like that the sizing is printed on the underwear instead of a tag, the label and underwear have lasted a few washes so far.

Nice underwear

Adorable boxers for.my son. He loves them. They are stretchy and breathable. They wash well so that is always a plus. I love the characters and the feel of them too. Fit just right for my son. I like how many you grt in a package.

Comfy

The material is nice. Its soft and it doesn't bunch up. True to size. My grandson loves them. I highly recommend these. I will be ordering more. Good quality!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Under Armour Boxers

These were a great true to size fit. The material is very comfortable and my grandson loved the patterns, it comes with 3 in the box and each one is different . I can tell they will last a long time. Will definitely buy again.

Great

I love this three pack of youth boys briefs. My grandson just loves them because he said that they are just liked his dads.  They wash well and retained their shape.  I like the elastic legs that don't cut into his skin.

Boy briefs

My son absolutely loves these! The design is fun, colorful, and really stands out. The material feels great and they fit him perfectly. He was so excited when he saw them and didn't want to take them off!

Cute

I got these boxer briefs for my 9 year old grandson who lives with us. He said that they felt good on and weren't to small as most under armour products seem to me to run small. He found them to be very comfortable when doing his karate and jui jitsu workouts and said the did not ride up or give him a wedgie.

Good fit nice style

Under Armour Boys 3-Pack Performance Boxer Brief

Shipping

Highlights

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