Balega's Hidden Comfort is built for absolute comfort. A cushioned tab protects your Achilles while cushioning under your foot and around your toes provides an exceptionally comfortable ride. Lightweight mesh on top provides ventilation. Low-cut design with a cushioned tab protects your Achilles tendon and helps keep the sock in place. Hand-linked, seamless toe for seam free comfort. Specially constructed mesh ventilation panel helps to keep your feet cool and dry. Extended cushion across toe box for extra protection. Extra-deep heel pocket. Soft, plush undersole cushioning provides impact resistance. Reinforced heel and toe provide long lasting durability. Balega socks offer real benefits to athletes of all ages and abilities. All of Balega's running socks incorporate a hand linked seamless toe, eliminating abrasion across the top of the foot. They also knit an extra deep heel pocket or 'Fit Well' ensuring that their socks fit the foot perfectly and don't slide down during your run. All of their socks utilize Balega's own 'Drynamix ' moisture management technology for supreme performance.