McDavid Hex Knee/Elbow/Shin Pads Details -Highly versatile pad available in 9mm Hex Technology -Pick your position--knee, elbow, shin or wherever it fits -HDC Moisture Management Technology is all about cool and dry -Machine washable/dryable -Sold as pair Material 80% nylon/20% spandex; polyethylene foam *Elbow Measurements: Bend your elbow to approximately 45 degrees and measure directly over the joint. When ordering a pair, take measurements on both elbows and use the average of the results.* *Knee Measurements: Measure the knee to be protected. Stand and bend your leg just less than 45 degrees, measure around the largest part of knee, directly over the patella (kneecap).*