• Features contoured posterior stays, movable medial/lateral stays and elastic compression straps at all closures for optimal immobilization• Indicated for post-op immobilization and mild to severe knee injuries where full extension of the leg is desired• Constructed of breathable foam laminate; concave aluminum stays; premium quality elastic straps with contact closure• Sizing: 16”L fits up to 28”; 18”L fits up to 28”; 20”L fits up to 29”; 22”L fits up to 29”; measurement taken from leg circumference 4” above mid-patella