Mueller Elastic Knee Support has a contour design that provides firm, lightweight support. Lightweight elastic knit provides firm support and maintains a full range of movement. Custom top weave helps prevent rolling, and reinforced trimmed edges improve durability. Composition: Polyester 60%, Elastic 30%, Spandex 10% Application/Instructions: 1. Slip on to knee. 2. Adjust as needed for a comfortable fit. Intended Use: Provides support to weak, injured, or arthritic knee joints. Cautions/Warnings: This product contains natural rubber latex, which may cause allergic reactions. Care Instructions: Hand wash cold with mild detergent, do not bleach, line dry, do not iron, do not dry clean. Size Guide: Measure Around Knee SM MD LG XL 12”-14” 14”-16” 16”-18” 18”-20” 30-35 cm 35-40 cm 40-45 cm 45-50 cm