This is a knee sleeve, which is manufactured with good material, durable and practical enough to use. Reasonable pressure design can effectively protect your knees. Skin-friendly, elastic, thick, warm, soft and comfortable to keep your knees and legs warm in cold weather. Features - Color: Grey -Material:Chinlon and imitation Rabbit - Size: 31.20X16.70X2.10cm/12.26X6.56X0.83in Size chart: -Size :29.30X15.80X2.10cm/11.51X6.21X0.83in -Size L:30.30X16.50X2.10cm/11.91X6.48X0.83in -Size XL:31.20X16.70X2.10cm/12.26X6.56X0.83in -Humanized design, so that people are not easy to fall off even in running. -Self-heated design, uniform force on all sides, comfortable and not tight, so that you have no sense of in wearing. -The material is comfortable, suitable for air conditioning room and any place that feels cool enough to use, not stuffy. -Fine workmanship and good material make this pair of knee sleeves durable and strong. -Suitable for riding bicycles, running, playing basketball and other sports. Package list: 1 x Pair of Knee Sleeves