do the job but they are not made of cotton as advertised [SEP] was looking for a sheer cap to protect my hair when i use my cpap headgear did the job but i really wanted a sheer breathable cotton cap though this thin polyester one is acceptable was just not what i paid for and i probably will not continue to use but i kick myself because i should have known that one this sheer as shown on the mannequin would most likely be polyester but at least i am not out big bucks