I do not know what I was expecting.  These fit my 8 year old perfectly but I am not sure how they will do for period panties.  I put water on them and it did soak it up... kind of.  It is hard to explain how it wicks the moisture away from the skin and locks it between the exterior of the panty and the panty lining.  I do not think it would be great for anything except wearing on days when you think you may start or if you have an issue with tinkling when you sneeze.