hot rollers pop this right on over them [SEP] i got this for dying my hair and keeping my straightened hair from getting wet when i shower it is huge definitely would be able to fit it over a head full of hot rollers and it has a lace trim around it really looks old ladyish so i do not let my fianc see me wearing it but it does its job and there is room to spare i guess better too big than too little and the elastic stays in place pretty well and does not give you an ugly mark from wearing it too long