Innovative combination of elastic and neoprene blend materials provide the desired level of comfort and support coupled with heat retention Soft, breathable neoprene-blend panel stitched around the ankle joint allows for heat retention Flexible design allows a full range of motion Finished, reinforced edges provide comfort and prevent rolling and slipping Fits left or right ankle #1 Pharmacist Recommended Brand of Braces & Supports (Based on Pharmacy Times and U.S. News & World Report 2020-2021 National Survey) Supported by our expert panel of engineers and medical professionals