Developed by a Physical Therapist and Orthopedic Clinical Specialist the ACTIVE SI BELT is secure, comfortable and appropriate for all stages of sacroiliac pain. The pelvis is stabilized by an innovative "double-belt" which incorporates sturdy nylon for stabilization with an inner belt of flexible, non-slip neoprene. This product stays in place at work, home or when playing sports; reduces strain on SI ligaments, decreases pain and improves function. Gently Used. Latex-Free and fully adjustable.