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Under Armour

Under Armour Kids Performance Cotton-Stripe 4-Pack (Big Kid)

  • Based on 7,285 reviews
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Availability: 15 left in stock
Fulfilled by Amazon
Arrives Jul 3 – Jul 9
Order within 20 hours and 48 minutes
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Size: X-Large


Color: Ultra Blue


Description

With keeps-you-cool cotton comfort, Under Armour Boxerjock boxer briefs feel fresh, stay put, and provide a zero-distraction stretch fit that's snug, but not tight for every day. This multipack includes 4 pairs.

Package Dimensions ‏ : ‎ 7.4 x 5.6 x 1.4 inches; 2.7 ounces


Item model number ‏ : ‎ 2 Pack Solid Cotton Boxer Briefs


Department ‏ : ‎ boys


Date First Available ‏ : ‎ July 12, 2017


Manufacturer ‏ : ‎ Under Armour Children's Apparel


Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.:


Best Sellers Rank: #11,041 in Clothing, Shoes & Jewelry (See Top 100 in Clothing, Shoes & Jewelry) #147 in Boys' Underwear


#147 in Boys' Underwear:


Customer Reviews: 4.7 4.7 out of 5 stars (7,355)


Brand Name: Under Armour


Additional Features: Lightweight


Age Range Description: Big Kid


Unit Count: 4.0 Count


Number of Items: 4


UPC: 193579426613


Manufacturer: Under Armour


Style Number: 2527X67019-41-PC


Manufacturer Part Number: 2527X67019-41-PC-410-YXL


Item Weight: 8.8 ounces


Item Type Name: Boxer Briefs


Color: Ultra Blue


Style Name: 4-pack Core Cotton Boxer Set (Big Kids)


Pattern: Solid


Rise Style: Mid


Bottom Style: Boxer Briefs, Boxers


Theme: Sports


Fit Type: Streamlined fit


Subject Character: Sports


Material Type: Cotton


Fabric Type: 57% Cotton, 38% Polyester, 5% Spandex


Product Care Instructions: Machine Wash


Apparel Fabric Weight Class: Lightweight


Apparel Fabric Stretch: High Stretch


Size: X-Large


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Jul 3 – Jul 9

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews

    • U.A.
Size: X-Large Color: Assorted Print
Fit well, made well he says they are comfortable.
Reviewed in the United States on March 29, 2026 by Tennille Mcfarland
    • Yes
Size: X-Large Color: Castlerock
Nice fit, size is good and they’re comfortable for my son.
Reviewed in the United States on May 19, 2026 by Shannonm
    • Good Underwear
Size: Medium Color: Red
My 8 year old son loves these. They are cool and comfortable for all day wear whether at school or at sports. The one drawback is that overtime the waistband has started to fold down in half, but that happens with most elastic waistbands these days it seems. I would purchase these again.
Reviewed in the United States on January 28, 2026 by Ryan
    • Perfect
Size: Large Color: Black/Gray Camo
Fit my 16-year-old son perfectly says they’re soft and really likes them he’s a size 29 waist
Reviewed in the United States on April 18, 2026 by Amazon Customer
    • Comfortable and Stylish: Under Armour Boys Charged Stretch Boxer
Size: Small Color: Red/Black Print
I recently purchased the Under Armour boys Charged Stretch Boxer Jock for my son, and I must say, it has exceeded my expectations. The first thing that stood out to me was the perfect fit. It hugged my son's body comfortably without feeling too tight or restrictive. The sizing chart provided by Under Armour was accurate, ensuring that I selected the right size for him. My son, who is quite active, appreciates the comfort provided by these boxer jocks. The soft and stretchy material allows for unrestricted movement, making it ideal for sports, physical activities, or simply everyday wear. He feels at ease and supported throughout the day, which is essential for his active lifestyle. One aspect that I particularly liked is the branding placement. When my son wears pants or shorts that may ride down slightly, the Under Armour logo is subtly visible. This prevents any awkward or odd appearance, and instead, adds a touch of style and authenticity to his outfit. It's a small detail, but it makes a difference in the overall look. The material of the boxer jocks is of high quality. It feels durable and has shown no signs of wear and tear despite regular use and washing. The fabric also wicks away moisture effectively, keeping my son dry and comfortable even during intense physical activities or warm weather. However, I do have a minor concern about the durability of the waistband. While it has held up well so far, I hope that it will continue to maintain its elasticity and shape over time. Overall, the Under Armour boys Charged Stretch Boxer Jock has proven to be an excellent choice for my son. The perfect fit, comfort, and visibility of the branding are standout features. Additionally, the high-quality material ensures long-lasting performance. If you're looking for comfortable and reliable underwear for an active boy, I highly recommend giving these boxer jocks a try. ... show more
Reviewed in the United States on July 3, 2023 by MBR
    • Son loves them
Size: Small Color: Castlerock
Great length! Great breathability excellent variety of colors, great quality and definitely helps with the overage of sweat that needs to be released through the air flow
Reviewed in the United States on January 1, 2026 by LMorrow
    • Excellent Comfort and Durability for Active Kids Under Armour Performance Cotton Underwear
Size: Large Color: Steel
This Under Armour Kids Performance Cotton underwear is absolutely amazing. They are super comfortable for an active child, especially one who plays sports and stays active throughout the day. They do not shrink or lose their shape after washing, which is something I really appreciate. The fabric is very durable and maintains the same quality even after multiple washes. They also stay soft and comfortable without becoming tight or uncomfortable over time. Overall, I highly recommend them. They are practical, long lasting and perfect for everyday wear and sports activities. ... show more
Reviewed in the United States on June 10, 2026 by Leipzig Guzman
    • The only undies my teenager son will wear!
Size: Large Color: Castlerock
My teen son will only wear these underwear. They are durable and hold up to washing and drying. They fit well and are comfortable and keep him cool. Material is breathable and stretchy. Will be buying more as he grows!
Reviewed in the United States on July 23, 2025 by Molly

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