TWIN is a powered lower-limb exoskeleton developed by IIT's Rehab Technologies laboratory for gait rehabilitation and research. The wearable system supports the user's legs through motorized joints and is intended for supervised work with people who have severe lower-limb motor impairment, including spinal cord injury and stroke populations described by the institution. IIT presents TWIN as an autonomous wearable rehabilitation platform rather than a treadmill or end-effector gait robot. This record reflects the current institutional product page and classifies TWIN as an active medical and rehabilitation exoskeleton. Treatment outcomes and suitability for an individual patient depend on clinical assessment and are not inferred from the directory classification.