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


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About this item
Product details
Performance-Driven Design for Active Boys
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.
Lightweight Fabric for Comfort and Movement
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.
Thoughtful Construction for Everyday Durability
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.
Elevating Basics with Trusted Quality
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.
Specifications
| Under Armour Boys 3-Pack Performance Boxer Brief | |
|---|---|
| Key Specifications | |
| Number Of Pieces: | 3 pack |
| Fit: | Stretch fit |
| Waist Height: | Brief |
| Waistband: | Elastic waistband |
| Coverage: | Brief |
| Fly/Gusset: | N/A |
| Inseam: | 4" inseam |
| Garment Length: | VARIES BY SIZE |
| Garment Weight: | N/A |
| Size Options: | S-XL |
| Model Sizing Information: | N/A |
| Material: | Polyester/Elastane Jersey Knit |
| Care Instructions: | Machine wash cold with like colors |
Member ratings & reviews
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Showing 1-3 of 14 reviews
Great for active boys
Under Armour Boys’ Boxer Briefs are a solid choice if you’re looking for comfort, durability, and performance for active kids. The first thing that stands out is the fabric, it’s lightweight, soft, and does a great job of wicking away moisture. This makes them especially good for sports. The fit is snug without being too tight, offering good support while still allowing for easy movement. My son said “these new underwear feel great, mom”. In terms of durability, these hold up nicely. The stitching stayed intact after washing, and the material didn't lose its shape or softness. The also run true to size of similar brands.
Comfortable and stylish
The Under Armour boys sport boxer jock Underwear is perfect For boys who prefer the slick sporty feel rather than the cotton. The material is 90% polyester and 10% elastane. Doesn’t stay wet very long. When I wash it, it dries very quickly in the dryer. It’s perfect for A quick wash load. The waistband is comfortable. It does have a seam, but it is smoothly sewn. It has a fun pattern on wanting the pairs and solid colors for the other two.
Wicking boxers
These boxers are a favorite of my sons! He really enjoys their fit, especially the waistband. The wicking is a great feature that this brand specifically is known for and these don't disappoint. He also really enjoys the variety of the colors within the packages.
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