yellowbox flip flops are the only shoes I wear. I have Lupus and bulging disks in my neck and back, so the cushion they provide help me to do what I need to without being in excruciating pain at the end of the day. - yellowbox flip flops are the only shoes I wear. I have Lupus and bulging disks in my neck and back, so the cushion they provide help me to do what I need to without being in excruciating pain at the end of the day.