Features: Double sided elastic design provides excellent support and flexibility. Suitable for sports scenes such as running and cycling. Good breathability, keeping knees dry and comfortable, suitable for long-term outdoor activities such as hiking, mountaineering and more. The ergonomic design of the three-dimensional cutting perfectly fits the knee, evenly distributes pressure, and reduces local pressure. Light in weight and has good storage capacity, making it easy to carry around. Specifications: Fabric: Spandex+latex yarn, double-sided elastic design combined with charcoal fiber Color: light gray Size: Small, M, L, XL Practicality: Suitable for running, cycling, fitness and other sports scenarios to help prevent sports injuries and relieve knee pressure. Size:S Length:27cm(10.63inch) Width:15cm(5.91inch) Size:M Length:27cm(10.63inch) Width:16cm(6.30inch) Size:L Length:27cm(10.63inch) Width:17cm(6.69inch) Size:XL Length:27cm(10.63inch) Width:18cm(7.09inch) Package Includes: 1 Pair Double Sided Elastic Knee Sleeves note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.