Information Thermoskin Elastic Support Knee 4-Way Extra Large is anatomically designed, this four-way stretch support combines spandex with advanced hosiery technology to provide protection and support for weak and injured knees without continual bunching. The benefits of this product are: Aids in the reduction of swelling and provides temporary pain relief. Innovative 4-Way elastic contours to the shape of the affected area. Provides even compression to reduce swelling and support for injured muscles and joints. Comfort for extended wear. Ingredients Material: 45% Polyester, 35% Rubber, 12% Nylon, 8% Spandex. How To Use Slip end of support over foot and slide up and over the knee so that the mid-section of the diamond shaped weave sits directly over the knee patella. Warnings This product contains natural rubber latex which may cause allergic reactions. Should an irritation or rash develop, discontinue use and consult your medical professional.