Clarifications & Features: * Uncontrolled surface that promotes blood circulation. * The ventilated upper mesh provides control of anti-microbial odor, ventilation and temperature regulation to keep feet dry and prevent infection. * A sustainable, chemical-free way to care for your feet, is a natural deodorant and emits far-infrared rays to boost blood circulation and produce anions. * Lightweight arch support, padded heels, toes and touch construction provide luxurious foot comfort. * Melting one inch ribs reduces contraction and prevents sock from falling. * Designed with Y Gore on toe and heel area to eliminate pressure.