Check the listing for details. Pro-Tec Athletics 3D Knee Support. Condition: New. Listed at 24.95 USD. Pro-Tec Athletics 3D Knee Support is designed to alleviate symptoms of general knee pain (including minor soft tissue tears/strains/patellar pain or tracking issues), tendinitis & arthritis. FEATURES * Designed with 3D Shaping, rather than standard flat stitching. 3D Flat stitching allows custom levels of compression throughout the brace, creating a more anatomically designed support. This allows customized stitching to achieve 3D shaping of the fabric for a optimum fit. * 3D Fit contours to knee area to provide compression and support. * Breathable, multi-directional stretch allows full range of motion while maintaining high level of support. * Anti-slip: Gel grip beads line top of 3D Knee Support, reducing chance of sliding down leg while running or walking. * Breathable: 3D Knee Support breaths and is suitable for warm weather. The knit design provides effective compression without restricting range of motion. * On the Go: The 3D Knee Support is designed to be worn while you are walking or running to alleviate pain while being active. * 20-30 mmHg, medical grade compression. SIZING CHART Measure circumference just above patella (knee cap).