Knee brace: Get a breathable medical neoprene knee brace. Support: Ideal for reducing post-surgery knee pain, strain, or arthritic discomfort. Material: Made out of thick neoprene, these braces are a brilliant way to retain heat and improve blood circulation around your knees. Size: Standard brace: medium size ideal for lower thigh measurement of 40 cm or lower. | Premium brace: one size fits all. Options: Choose between a standard or a premium brace. Protect: Also ideal protection for ACL, PCL, and MCL ligaments. Neoprene Knee Brace | Living Social