Adjustable Knit: Wraps for ideal fit & compression. Provide support to weak, injured, or arthritic knee joints. One size fits most. Support Level - Minimum. Class 1 Medical Device - FSA eligible. 1. Combines the comfort of knit supports with the custom fit of a wraparound design. 2. Open back o help reduce bunching. 3. Ultra-lightweight and breathable knit panel. 4. Antimicrobial (Antimicrobial treatment is intended to protect the brace and does not extend protection to the skin). Sizing: Adjustable - One size fits most fits left or right knee. Measure circumference of the knee. Fits 12.0 - 20.0 in / 30.5 - 50.8 cm. 3 In 1: 1. Provides protective support to knee. 2. Helps improve knee position sense. 3. Helps relieve pain without affecting performance. Since 1959 the Mueller family has been the trusted leader in sports medicine. We are dedicated to creating the highest quality products that help people recover and perform at their peak. Trusted brand. Family owned since 1959. Further instructions included. Endorsed by the World Federation of Athletic Training & Therapy.