First, the piece feels totally seamless, so you feel no stitching, labels, or anything else. Next, the material is silky and smooth, so it feels like not wearing anything. Yet, the design is such that the support is right where it is needed. You slip these on, and the "parts" naturally fall in place quite easily. After a whole day of wearing, there was no ride up, bunching, or chaffing, but complete comfort. On the next day I wore one of my old pairs, and I could not stand it. I'm switching all my pieces to Separatec.