I didn't think there was much difference in pillow cases. Recently I started dabbling in different materials and learned that my love and use of flannel could dry out my hair! So I tried silk. Helped my hair but I don't like the slippery feeling on my face and hair. Got these and they are a perfect in-between of not to slippery but still soft. These have been my main cases for husband and I for a few months. Holding up fine to daily use and no signs of fade through several washes. Nice product.