No Show Low cut to make socks invisible Perfect for loafers, low-cut Sperry's, low-cut Vans, low-cut Sneakers, summer high-heel shoes, ballet flats, etc. Non Slip Special design of the silicone heel grips will keep the socks hugging your feet well in place. Comfort Nylon Velvet material makes the socks breathable, and makes your feet feel dry and clean. Soft, stretchy, flat top line ensures it not dig into your feet. Satisfaction PACKO Socks is always doing our best to provide better products and service to our dear customers, so if you have any dissatisfaction with our products, please contact with us, we will refund or send another set of product for you.