Material: nylon, spandex, elastic fiberHelp to relieve joint pain from joint inflammation and injury recovery, provide needed warmth and improve blood circulation and muscle recovery. It can wick away sweat and keep the knee pads breathable, stable, dry and cool. Look at the size chart: If you feel a little tight, this is normal, only this situation can play the role of our knee pads. Multi-purpose: very suitable for running, jogging, mountaineering, rock climbing, hiking, gymnastics, cycling, tennis, badminton, volleyball, football, tennis, basketball, skiing, golf, etc. The right size for everyone: S \/ M \/ L sizes are provided to ensure you get the best support you need, suitable for men, women, children and teenagers. Manually measure the size, there may be slight errors, and there is no impactThe PXCL team is at your service and we hope you enjoy your life!