KNEE SELECT /6200  knee stabilizer made of 4mm neoprene.Back part - perforated provides continuous air circulation. Protector can be used prophylactically preventing injuring injuries, how and alleviating the consequences of injuries.Stabilizes, supports and warms the knee joint. Size S - knee circumference 33-35 cm   &nbsp ;      M - 35-37cm           L - 37-40cm   &nbsp ;     XL - 40-43cm       XXL - 46-49cm