The Classic Line Knee Brace is powered by Welltex® technology and designed to sit firmly in place. This product has 2-Way Stretch that provides a little more rigidity and stability specific to lateral motion providing comfort, flexibility, and support for knee pain versus our + Physio 4-Way Stretch Knee Brace . Easy to wear and perfect for daily use. Before beginning use of our products, please carefully read the directions for use which can be found on our packaging. Our products should be introduced slowly, and each product has a different introductory period. Please carefully follow the directions for use of our products, as the body needs the opportunity to familiarize itself with the Welltex fabric’s effects.