It provides a support brace or elbow brace includes a sleeve of elastic material is unidirectionally elastic in a transverse direction across the width of the brace or brace to provide support to the joint compression that takes the knee pads for motorcycles or elbow pad. The sleeve includes a front portion through which one or more bands have support in a slightly spiral, or in an "s". The support bands are unidirectionally elastic in a longitudinal direction along its length to provide lift support to the joint which carries the rider's knees. .