Best Athletic Underwear for Boys of 2025

"I initially bought size large for my skinny 11-year-old, but they were too tight. I exchanged them for the XL, which are still a bit big, but my son feels more comfortable in them. He has texture sensory issues, so finding boxers he likes was a win!"

"I ended up keeping the shorts since they were well made, but they were a little big for his waist. He's very slim, but I believe he'll wear them next year."

"These compression shorts fit really nice and are a great value for money. They wash well too! We'll be using them year-round for all his sports!"

"My son loves these for his sporting events. They're easy to carry and provide great support for soccer, football, and basketball. At 5.5 years old and 115 pounds, he fits well in the men's extra small."

"I ordered these to keep my son's phone handy while connecting it to his diabetes monitor. They work perfectly for that purpose."

"My nearly 11-year-old is tall and very skinny. Normally, he fits well in youth large sizes, but I ordered down for these compression shorts. Sadly, they were still too baggy and short for him. The quality is solid, but the fit isn't great for tall and lanky kids."

"I needed compression underwear for my son, who is 12 years old and over 6'1. Finding the right fit was challenging, but these youth XL (14/16) underwear fit perfectly in the waist. They might be a bit short for him, but at least they provide the support he needs. He loves how comfortable they are!"

"My son is between 3T and 4T, and while these are a bit loose, they are perfect for under his bathing suit. They keep the netting from wrapping around him. We will definitely buy more once he fits them better!"

"I ordered the 8-10 size for my 6-year-old, who tends to outgrow clothes quickly. The fit is fantastic, and the shorts are of great quality. My only minor complaint is that the screenprinted bear paw cracked after the first wash. Still, my son loved them so much that he didn’t want to change out of his first pair!"

"My grandson loves these Under Armour briefs so much that he asked me to order another pair. I purchased a size 8, and they fit well on his slender frame. These underwear are soft and wash nicely, which is important. I highly recommend these Under Armour briefs."

"I recently bought the Under Armour boys Charged Stretch Boxer Jock for my son, and it has exceeded my expectations. The fit is perfect and hugs my son's body comfortably without being too tight. The soft and stretchy material allows for unrestricted movement, making it ideal for his active lifestyle. The branding placement is also a nice touch, adding style to his outfit. Overall, a great choice for active boys!"

"I ordered a boxer in size M, but what I received, although labeled as M, is more like a size XS. It stretches to fit, but the sizing is inaccurate, and the product doesn't match the photos. I am quite disappointed with this purchase."

"My son loves these boxers. They are super comfortable, made from breathable, soft material, and have lots of elasticity. They also fit true to size."

"I bought these three weeks ago and came back to order more. Surprisingly, I found out they are actually for kids. Despite this, I’m 6'5" and 250 pounds, and the XL fits great!"

"My kids absolutely enjoy these underwear, especially the fun colors. They mentioned that the legs stay in place better than other brands. However, the waistband does roll down after some time, so I might look for a different brand next time."

“I have a 10 and 12-year-old who absolutely love these shorts. They say they are 'so soft' and appreciate the longer length. My 10-year-old has been wearing the large size for over a year, and they still fit him perfectly!”

“I bought these in XL 16-18 for my grandson's birthday. He is an average size 10-year-old, but he prefers the dri-weave and longer length for sports like baseball and basketball. They fit him perfectly, and he really liked them!”

“My son, who is 8 years old but quite tall and athletic, fits perfectly in the 10-12 size. These are great for everyday wear and for his football and basketball practices. They're longer than regular boxer briefs, which is exactly what we were looking for!”

"I was thrilled to find these compression shorts for my son. He plays soccer and often struggles with underwear that either falls down or feels too tight. These fit him perfectly and he’s no longer distracted during games!"

"My son runs cross country and these shorts are just what he needed. They fit true to size and are incredibly comfortable under his short running shorts, making him feel confident while racing."

"I bought these compression shorts for my 9-year-old to wear under his jiu-jitsu shorts. They fit snugly and keep him cool during practice. The delivery was fast, and they arrived in great condition!"

“I’m impressed with the great quality of these athletic supporter briefs. My son has been wearing this brand since he was 7, and now at 10, he never complains about discomfort.”

“For my son's first year catching, these fit perfectly and seem comfortable for him. I couldn’t have asked for better.”

“I bought these for my 4-year-old's T-ball season. They worked as expected and offered great value for what we paid.”

"I bought these for my son to wear under his white baseball pants, which were see-through. They fit great and are comfortable. The quality is excellent, and I appreciate the front pocket for a boys' cup. However, these aren't ideal for sliding protection since the padding isn't very thick. They're more suited for proper undergarments during games."

"My son uses these for football and says, 'they're comfortable.' What more can I say?"

"I really like these shorts! They come with a good cup and protect me from everything. My son needed something that could hold his cup while playing baseball, and these fit his skinny frame perfectly."

"I purchased these for my son, and they fit perfectly as expected. He really enjoys them! I will definitely buy again."