Pro-3 Light Cushion No-Sho, SM (Men Size 4-7, Women Size 5-7.5), Grey. The PRO N?-Sh? Incredisocks use a unique Carbonized Charcoal Anion Technology (CCAT for short) that increases circulation to your feet, which can lead to increased performance, decreased foot fatigue and shorter recovery. PRO N?-Sh? is specifically designed to ensure thatyour feet are treated to an advanced sock that's odor resistant, moisture wicking and extremely comfortable. We use a patented Italian 3-D weaving machine while constructing our 200 thrread count PRO N?-Sh? sock and the results are the most comfortable, non-stinky, high performace sock in the world!