Fittia satin bonnet is made of 100% premium satin on out layer and lining, designed for both side wear; making the soft bonnet protect and care for your scalp. Besides, hair bonnet for sleeping tested and approved for colorfastness before using; With our bonnets, you wouldn't worry the pillow will get dirty at all when sleeping. Fittia satin bonnet features a low profile side-release buckle and stretchy wide elastic strap. The side-release stretch strap was designed to make sure the satin bonnet can stay on your head and won't slip down all night.