This BBL board is made out of Polystyrene, it isbreathable and firm. The curved design canprovide an even compression and create a soft
barrier over your skin to reduce bruising and swelling, and keep your lumbar area smooth and flat. Also this back board is ergonomic, it is an
invisible abdominal Ab board under the compression garments and wont attract anyone attention. So you can wear it wherever you stay
at home or go out.