NO RETURNS OR EXCHANGES FINAL SALE! Absolute cotton! The post surgical bra ISRA molds smoothly to your skin. All materials such as the bands around the arms, on the under bust and the neckline are particularly soft and flatly tailored. The smooth breast form pockets are made of lightweight cotton* Front fastening bra for sport, leisure and post operative wear -also suitable for sleeping in* Button fastening and soft, flat Velcro fastener for easy closure* Soft stretch cotton - extra-kind to the skin* Soft edge bands around armholes and under bust to prevent constriction and chafing