It looks like the ruffle fabric has been hemmed all around. That's a lot of work. I have a blouse that I have worn to the one room school for the past 20 years. It has tiny ruffles down the front that I never have to iron, just straighten them out when I wash it. They are made of bias fabric about 3/4 inch wide and put through the ruffler on my machine. No hemming of edges. So easy and the bias edges never fray.