Braces in this level offer the HIGHEST protection and support features. Knee braces are usually made of aluminum or carbon fiber composite materials that provide maximum support not found in level III braces. Adjustable hinges are included to provide maximum protection of the ACL and PCL ligaments. Flexion and extension stops may be included to control knee joint range of motion. Superior protection is provided for the medial and lateral collateral ligaments, meniscus and joint cartilage. Ankle braces are usually stirrup or hinged stirrup design for maximum support and flexibility. Wrist and elbow braces may be hinged for adjustability and maximum protection.
http://www.kneeshop.com/proddetail.asp?prod=06500RE: Breg - K 500 Flexmate
