• Size Guide: Use a flexible measuring tape. Stand up and stretch your leg. Measure the circumference of the leg 10 cm below the knee. • High-Quality Sponge Cushion: Built-in high-quality sponge pad, with some hardness but comfortable. Strong impact resistance, can cushion knee pressure and effectively reduce impact. • Good Protection: 0.39-inch thick sponge. Hard padding to effectively reduce pressure on knee joints, strong impact resistance, prevents collisions, reduces wear and bruises. • Scope of Application: Suitable for sports protection such as dancing, yoga practice, pole dance, physical activities, etc. Machine washable in cold water, does not fade or deform easily after washing. • Material: Polyester, foam, and elastic rubber. Total product weight: 65-95 g. • Available Colors: Black, Nude. • Application Area: Suitable for dancing, running, volleyball, soccer, and knee protection.