This Review Title is Do the job but they're not made of cotton, as advertised. and the content is: 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 won't 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'm not out big bucks..There are other information for this review, one is This reviewer did purchase it and the other is 0 people think this review is helpful.