Dear: High Quality・wish you like it! Color:Red、White、BlackSize reference・Size Up Circumference down Circumference Length Fits Knee Circumference M 28CM/11\" 25CM/9.8\" 27CM/10.5\" About 33CM/13\" L 32CM/12.6\" 28CM/11\" 28CM/11\" About 38CM/15\" XL 38CM/15\" 32CM/12.6\" 29CM/11.5\" About 44CM/17\" Package include:1x Knee Protector