The ISO Preferred Walking Boot (FT36x) is a non-pneumatic foot and ankle brace designed to reduce the time it takes to heal discomfort from soft tissue injuries, post-surgery, Grade 2 and 3 sprains, trauma and rehab. The boot has a soft, cushioned inner liner and outer support uprights. The curved rocker bottom is constructed to promote a natural and normal gait. A closed heel provides additional foot protection. Models are universal left or right foot; sizes are S to XL. If additional padding is necessary to cover a sensitive area or achieve a more secure fit, optional spacer pads are provided.