Recently I have decided to eliminate synthetic fabrics from my life....have been reading about the quality of synthetics trapping and interacting with EMF's (electromagnetic fields), and especially do not want them around my head. I get migraine headaches and my hair stands on end during the winter. It took a lot of searching to find pure cotton hair accessories....most all are made from some weirdo fabric or have attached metal clips. Finally I found these and loved them. The seller even made my color to order! Thanks so much! Great product!