• Synthetic
  • Imported
  • The compression brief with BioFlex cup offers superior protection and comfort in a brief-style undergarment
  • Designed with moisture wicking four-way stretch fabric that moves with your body while eliminating sweat
  • Constructed with supportive stretch cotton/poly fabric
  • Mesh cup panel secures the cup and increases ventilation
  • The BioFlex cup is a vented bio-shaped device designed to shield areas where protection is most crucial -- The body of this core protective cup forms flawlessly to your athletic frame, providing unrestricted movement, airflow and comfort

My 6 year old son plays youth tackle football and t-ball. We purchased this product for those sports... on the first day after washing everything my son walked around the house and banged on it all day *sigh*...as you can imagine, he spent a lot of time finding different ways to hit himself to see if it would hurt...In his words, "Dude mom, this thing totally keeps my peep safe." This product has lasted through multiple washings and is still going. On another note, we had to travel quite a lot with our football team and it was super convenient that we could just slide the cup out after the game and he could just wear the briefs like underwear on the long ride home; no complaining from the backseat *woohoo! I bought him a size XS, he weighs about 50-55 pounds and is super skinny; we usually buy 7s adjustable waist jeans at the Children's Place (that should help some of you with sizing). This was the perfect size for him. Oh yeah, I recommend that you buy the extra brief 2 pack if you are playing sports multiple times a week; just convenience for the person keeping up with laundry. Update: a year later and we are still going strong. Great quality!

I write this review realising how different my life would be if this product had existed when I was a kid. You see, I hated playing sports. Not because I did not enjoy them, not because I was terrible at them, but primarily because I absolutely despised wearing a cup. When I was a kid, wearing a cup required wearing a jock strap. The jock strap, I think, was invented in the dark ages as a medieval torture device. I can remember as a kid being so insanely uncomfortable that I despised going to baseball practice. It was awful to put on, it was awful to wear, it was awful to own. Sure you could pull the cup out if you had to go do something after practice, but the jock strap stayed on, digging into your skin and causing severe discomfort. Quitting baseball got me out of wearing a jock strap, and not playing other sports kept me safe from the horrors a jock strap would inflict. Fast forward twenty-five years. My five year old started T-ball, and on day one his coach told us that cups are required. Oh no I thought. How can i inflict on my son the same pain that I felt as a kid? What kind of monster must I become to ensure that he can stay safe at T-ball? I got on amazon, and started looking for the little torture device that he needs. Thankfully, I came across this. It is underwear. Normal comfortable underwear. But it also has a slot for a cup. It is amazing! No more horrific jock strap. No more post practice discomfort (slide the cup out, and it is just normal underwear!). My son has worn it to practice a few times, and tells me he cant even tell it is there. If this had existed when I was a kid, I would probably be an MLB pitcher or an NFL quarterback. I would have millions of dollars. I would have a different life. Oh well. As for fit, I got an XXS for my five year old. He is a bit on the small side for his age, but this fit him perfectly.

Got this when my 8 year old son's baseball coach sprung on us that cups were required in their league. Looked at a lot of reviews of different brands and went this route based on the comments on its comfort. I am happy to say my son's experience has been very similar to the 5 star comments where he forgets he has it on, isn't messing with it all practice, it doesn't restrict his running or movement in the field. These things have come a long way from my day. He griped a little the first time he put it on, but once he got to the field he didn't say a peep and hasn't since. I saw they offered a pack with two compression shorts which, with two practices a week, seemed like a good idea. But it was more expensive than just buying another cup with the shorts, so i just ordered two of these figuring now I have a spare cup. I got him the small (red) one. He is average height and average weight, slightly skinny 8 year old and it fits great.

My 6 year old needed protection for sparring in our first Tae Kwon Do tournament. I was worried he would not like the fit and feel but after he tried it on he forgot he was even wearing it. The briefs fit like normal underwear so that was really helpful. He's an athletic build and 4ft tall 58lbs. I ordered him Small in the briefs and cup and they were both a perfect fit. The cup is easy enough to slide in and out and he said it was very comfortable. Good quality product.

Since this is not something that I (personally) wore - I'm giving it a review on what it does. The boy says it's as comfortable as a cup can get (apparently - they are not that comfortable). And it has definitely saved the family jewels more than once. He took direct (fast ball hit and a line drive) to the cup - both bounded off (making a horrific sound and putting all of us watching in a giant cringe) without even a bruise to his junk. So - THANK YOU - Shock Doctor. You've saved the day multiple times!

We've owned these long enough that my son is about to grow out of them, so probably about time to leave a review. First, we bought the X-Small for my son right before he turned 4. He is 99th percentile in height and about 75th in weight, so he's big for his age. The X-Small fit him well. Now that he has just turned 5, they're still fitting but they're pretty snug. So, I'm back to order the small. He uses these for T-ball and soccer and has never said they were uncomfortable. Before one game, we forgot to ask him to put them on and he had on regular undies, so I told him he could skip it. He insisted on getting these and the protective cup and changing. So, apparently he feels that they are useful. He doesn't need to mess with/ adjust them, which I appreciate because I hate being that mom who is always doing that exaggerated whisper "STOP picking at your underwear!" These have held up really well with washing - they actually still look pretty new even though we washed them on hot with bleach. Happy with the quality.

We ordered several pairs of these bc it’s the only fit my son likes. For reference, he is 5’6” and 100# and wears size Medium

*Honest Review - No free products/discounts received - I get nothing by leaving this review. This is the best baseball brief we've ordered so far. Ordered size M for a 60lb average sized child & it fits well. I'm probably going to order a size L now because the M seems to fit just right & will be probably be outgrown soon. The cup it comes with appears to be super big but there are no complaints when worn and can always be replaced with a smaller cup if the wearer prefers. I'd highly recommend this one based on quality and price. For the price, it's great! I stopped ordering other brands because this one is the most comfortable/affordable one we've found. They hold their stretch and last long too! I have nothing negative to say about these.

These are now my son's second pair of these. When he was 6 and 7, he wore the XS. At 8, he's graduated to the S. The undies fit nicely and the cup fits really well in them. He's never complained about wearing it and it seems to do it's job. They have a boxer-brief version as well if you son prefers those.

I have a 9 and 10 yr old that play baseball and needed a cup. One of my kids has sensory processing disorder and was having a fit with other options we tried. This finally did it. It’s comfortable and stays in place for him. My boys are small/short and weigh next to nothing so I got a small and they fit them great.