Please measure the circumference of your thigh 10 cm above the kneecap XS: 24-26cm S: 27-30cm M: 31-34cm L: 35-38cm XL: 39-42cm Good Protection: These knee pads offer plenty of padding, allowing you to glide across the floor and move freely. Wearing these will greatly improve your rehearsals. Stretchy & Comfortable: Just enough stretch for comfort, but not so tight that circulation is cut off. They take more weight than flimsy dancer's knee pads, and excellent padding makes training much easier. Ideal for Dance: You use these knee pads for dance classes that involve a lot of spinning, crawling, and twerking on the floor. Use them for warm-ups and some pole dance turns. Of course, take them off for climbing or inversions. Multiple uses: Thickened sponge to effectively reduce pressure on the knee joints. Prevent collisions. Reduce wear and tear and bruises. Perfect for dance, pole dancing, yoga, cheerleading, running, inline skating, and skiing. Suitable for all types of sports activities.