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⚡ Gear up for unstoppable days with Under Armour Performance Boxer Briefs!
Under Armour boys Performance Boxer Briefs feature a lightweight, breathable fabric blend of 90% recycled polyester and 10% elastane, engineered with 4-way stretch for superior mobility. Designed with a moisture-wicking system and tagless, chafe-free seams, these boxer briefs ensure all-day comfort and durability. The no-roll hem and performance waistband provide a secure, streamlined fit ideal for active kids. Available in convenient 3-packs, they combine sustainability, performance, and style for the next generation of movers.













| ASIN | B0C3NGW7H3 |
| Additional Features | Stretchable |
| Age Range Description | Big Kid |
| Apparel Fabric Stretch | High Stretch |
| Apparel Fabric Weight Class | Lightweight |
| Best Sellers Rank | #6,545 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #11 in Boys' Boxer Briefs |
| Bottom Style | Boxer Briefs |
| Brand Name | Under Armour |
| Care instructions | Machine Wash |
| Color | Black |
| Customer Reviews | 4.7 out of 5 stars 8,288 Reviews |
| Fabric Type | 90% Polyester, 10% Spandex |
| Fabric type | 90% Polyester, 10% Spandex |
| Fit Type | Regular |
| Fit to Size Sentiment | Neutral |
| Garment Size Country | United States |
| Item Type Name | Underwear |
| Item Weight | 6.24 ounces |
| Manufacturer | Under Armour |
| Manufacturer Part Number | UWSHJ04F-001 |
| Material Type | Polyester Blend |
| Number of Items | 3 |
| Origin | Imported |
| Pattern | Solid |
| Product Care Instructions | Machine Wash |
| Rise Style | Mid |
| Size | Small |
| Style Name | Performance Tech - Solid 3-pack (Big Kids) |
| Style Number | UWSHJ04F-001 |
| Subject Character | Sports |
| UPC | 197571009508 |
| Unit Count | 3.0 Count |
T**E
Comfortable, durable, and perfect for active kids!
These Under Armour boxer briefs are exactly what we needed for our active son. The fabric is lightweight, smooth, and stretches comfortably, providing excellent freedom of movement. They wick moisture well, keeping him dry during sports and play, and they’ve held up beautifully after multiple washes, no fading, shrinking, or loss of shape. The fit is true to size, and the waistband stays in place without digging in. Overall, these boxer briefs combine comfort, durability, and performance, making them a great value. Highly recommend for boys who are always on the move!
M**N
Comfy and good quality
Good quality and my son says they’re so soft and comfy. He won’t wear any other kind! He is 10 years old and very slim and the Medium fit perfect.
B**G
Good Quality
These Under Armour boys’ underwear are great material quality and super soft. The size chart recommended a smaller size, but I’m glad I went with the XL for my 9-year-old — it fits and looks perfectly. The price was within my budget, especially with the sale, and overall they’re a great buy!
E**H
The only boxers my son will wear!
Best boxers for boys! The only ones my son wear! Breathable and so comfortable! The perfect size and high quality! Will be buying in more color! And great price!
A**S
Under Armor Briefs
My son loves Under Armour products, and their Boxer Briefs for boys are no exception! These boxer briefs are incredibly comfortable and breathable, which is so important for an active kid. The material is high-quality, soft, and holds up really well even after multiple washes. He says they fit perfectly and feel great all day long — no bunching, no discomfort. It’s clear that Under Armour really puts a lot of thought into making products that are both durable and comfortable for kids. I would highly recommend Under Armour Boxer Briefs to anyone looking for great everyday essentials for their kids. They’re definitely worth it!
S**N
Kids love them, but waistband rolls
My kids love the feel of these underwear, along with the fun colors. They also say that the legs stay in place more than other brands. However, the waistband rolls down after a while. I will probably look for another brand to purchase next time.
A**R
Comfortable and Great Quality
Great quality! My boys love them!
L**N
Fits Well
I have 2 Grandsons both 13 years old, I brought these for, one loves them and wears them all the time., and has had them before, the other saids he likes them...but not sure he loves them...they Both liked the colors, and fit.
A**A
small fitting
very small for sizing not what i expected.
S**L
Keine Rücksendemöglichkeit trotz falscher Größe
Keine Rücksendemöglichkeit trotz falscher Größe - Gr. L bestellt YL (US-Kindergröße) erhalten. Leiser sehr schlechte Performance - Kein, nur der Zwangsstern!
L**D
Zu empfehlen
Liegt gut am Körper
A**Y
Excelentes
A mis hijos le encantaron de 6 y 8 años muy comodos
M**D
Size very small
It's kid size
Trustpilot
2 weeks ago
3 weeks ago