This breathable back support brace is comfortable to wear and stays in place during sports and other physical activities Spine Alignment: the lumbar support belt provides added lumbar support for proper spinal positioning and alignment. Wear it when you walk, bend, or stretch Streamline Design: the crisscross ventilated elastic of back stabilizer brace creates firm compression to aid relieve sore and aching backs Supporting Stays: the flexible stays of the back support belt eliminate rolling to ensure additional support