M-Brace 41 Features: -Plus knee brace. -Color: Blue. -Combination of flexible materials with the M-Brace technology allows this brace to anatomically conform to any knee joint and muscle shape. -M-Brace locking system enables the patient to choose his or her own perfect locking position. -Allows full blood circulation and avoids migration. -Due to the unique design and structure of the banks encircling the thigh and the calf, this brace is fully secured on the knee and no pressure is applied to the popliteal region. -Skin can freely breathe and any skin discomforts are avoided. -100% Cotton on the skin, hypo-allergenic and neoprene free. -Traumatic pathologies: Patellar sub-luxation, patellar instability, tendonitis, post-fracture. -Post-op phase: Offers compression and protection. -Rehab phase: Offers passive support and protection during sports. -Two moon shaped buttress along with the ultra-light stays enable lateral tracking of the patella limiting its movement and offering greater stability to the joint. -Aluminum hinges included. Specifications: -Sizing is determined by the knee circumference 4" above the mid patella:. -Small: 12.6-14.2". -Medium: 14.2-15.8". -Large: 15.8-17.8". -X-Large: 17.4-19.4". -XX-Large: 19-21.3". -XXX-Large: 21.3-23.7". -XXXX-Large: 23.7-26.1". -Dimensions: 13.78" H x 7.87" W x 1.38" D. Size: XXX-Large