Comfortable and breathable. Heat Retention: Improves circulation and helps promote healing.* Elasto-Preene Supports are an innovative surgical elastic/neoprene blend which provides the desired level of comfort, support and stability coupled with the benefits of heat retention. Soft breathable neoprene blend panel stitched around the ankle joint retains heat over painful areas. Compression helps to reduce swelling around injured areas. Finished edges that are reinforced provide comfort and prevent against rolling and slipping. Breathable elastic material to release moisture. Protection Level: Advanced: Designed to provide moderate support during activities and should be worn as needed. Suggested Use: Pull support on so that the heel fits into the cut out area of the support. Stitched panel should lie comfortably on both sides of the ankle as well as behind the ankle. Adjust slightly to your desired comfort level. Care instructions: Hand wash in warm water with mild detergent. Air dry.Size Selection: Measure circumference around mid section of ankle joint. SM/MD: 6.5 - 9 inches (16.5 - 22.8 centimeters). UPC: 051131203891 Weight: 0.57 lbs