The CW-X Endurance Generator Compression Short provide unparalleled support for muscles and joints during high endurance activities. Patented EXO-WEB support panel contours muscles and joints for support and stability with unrestricted range of motion. Combines compression and kinesiology tape benefits. It's designed to reduce lactic acid build-up, reduce muscle oscillation, and minimize fatigue. With this high-performance gear, you can take your training and athletic performance to the next level!! These are in EUC. I actually never wore them but I did wash them. Please feel free to ask any questions by leaving a comment below!