CROSSTRAP Stabilizing Patella Strap | Patella Knee Strap for Running, Cycling, Hiking, Outdoor Sports | 1-Strap Black (One Size Fits Most)

My 9 year old wears this in small ... it's a tad too big for her because it's taken up all the way but it works.

Received mine today. I'm a 170lbs male, 6'. Nothing unusual size wise. This doesn't go around me knee without a piece of velcro touching by skin. As a result, it chafes. See images. Its FAR too small unless you're a midget. They could have added at least another 2 inches to its length, maybe 3.

Great band

These things are amazing!!!!!!!! My knee pain got so bad due to all the running that I have to do in the military(I ended up deteriorating most of the cartilage in my knees), that I could barley do squats or even jumping jacks without knee pain, so running for me was out of the question. I also had a hard time doing most of the moves when I was doing the "Insanity" workout,until I came across these babies!!! :-) Now I can run for exercise, and do so much more and not feel a bit of knee pain.....I mean like NONE!!!!!!!!! I have purchased tons and tons of knee sleeves, patella stabilizer braces, etc... (all of which ranged from $70.00 to $250) and none have worked like these have for me. I would, however, inform you to measure around your whole knee with a measuring tape prior to purchase as the material only adjusts to literally 19 inches and is not stretchable material, so if you have a knee bigger than that, you perhaps can look around for the same product in a bigger size or ask if they can custom order, but they are definitely worth it :-) I received this product at a discount in exchange for my unbiased review.