The Knee Length SPIO Lower Body Orthosis assists with gait and fully body stability when combined with the SPIO TLSO or Upper Body Orthosis. It is ideal for those with spastic dyplegia, hypotonia, Down Syndrome, Ataxia, Autism, and Sensory Processing Disorder. Stabilizing Pressure Input Orthosis (SPIO) assists patients with stability and proprioceptive deficits through deep pressure. Since deep pressure appears to be an important somatic input for balance and movement control, SPIO is designed to provide and enhance deep pressure sensory input around and toward the midline of the body to improve dynamic stability and postural activation.