New Arrivals
- Men
- Women
- Kids
- Shoes
Featured
Father's Day Gift Guide
Summer Sports

Featured
Shop by Category
Shop by Sport
Shop by Collection
Accessories

Featured
Shop by Category
Shop by Sport
- Basketball
- Flag Football
- Golf
- Hiking & Outdoor
- Pickleball & Tennis
- Running
- Softball
- Training
- Volleyball
- Yoga & Pilates
Shop by Collection
- UA Meridian
- UA Unstoppable
- HeatGear®: Keeps You Cool
- UA Vanish: Performance Apparel
- ColdGear®: Keeps You Warm
- Project Rock
- UA Freedom
- College Fan Gear
Accessories

Featured
- New Arrivals
- Summer Picks
- Summer Golf Looks
- Camp Essentials
- Tween Shop
Boys
Girls
Shop by Sport
Shop by Size

Featured
Shop by Category
Shop by Gender
Shop by Sport
Shop by Collection

Men
Women
Kids
Shoes

Featured
- Apparel Under $25
- Shoes Under $75
Men
Women
Boys
Girls

Skip to main content

FREE U.S. Standard Shipping Orders $50+ & FREE Returns

FREE U.S. Standard Shipping Orders $50+ & FREE Returns

English

New & Featured
Men
Women
Kids
Shoes
Curry
Outlet

New & Featured
Men
Women
Kids
Shoes
Curry
Outlet
Region: US

My Dashboard
Order History
Profile
Preferred Sizes
Payment Methods
Addresses
Saved Items

Gear up & get moving with our newest arrivals. Shop Now. See details.

Kids
Boys
Underwear

Boys' Underwear - Gray

Gray
Clear All

1 Item

Sort

Now Trending
Best Sellers
Price (Low - High)
Price (High - Low)
Top Rated
Newest

Underwear

Accessories
Baselayer
Hoodies & Sweatshirts
Jackets & Vests
One Piece & Sets
Pants & Leggings
Shirts & Tops
Shoes
Shorts
Swimwear
Underwear

Filter

Gray

Sort
Color (1)
- Blue
- Red
- Black
- Gray

UA Performance Cotton

Save this item

UA Performance Cotton
Boys' 4" 3-Pack Boxerjock®

$26

Price: $26

Stay in the loop.

Accepted Payment Methods

Live Chat

Monday - Sunday

Need Help?

Live Chat Now
Help Center
Size Guide
Shipping & Delivery
Returns & Exchanges
Store Locator
Order Tracking
Gift Cards
Sitemap
Student Discount

Need Help?

Live Chat Now
Help Center
Size Guide
Shipping & Delivery
Returns & Exchanges
Store Locator
Order Tracking
Gift Cards
Sitemap
Student Discount

About Under Armour

Affiliates
About Us/Our Story
UA Rewards
Careers
UA Community
Investor Relations
Product Recalls
Corporate Sales
UA Newsroom
Do Not Sell or Share My Personal Information
Innovation Idea House
UA Blog

About Under Armour

Affiliates
About Us/Our Story
UA Rewards
Careers
UA Community
Investor Relations
Product Recalls
Corporate Sales
UA Newsroom
Do Not Sell or Share My Personal Information
Innovation Idea House
UA Blog

UA Social

Instagram
Facebook
Twitter
Youtube

UA Social

Instagram
Facebook
Twitter
Youtube

© 2025 Under Armour®, Inc.

Terms & Conditions

UA Rewards Terms

US and California Privacy Policy