The Sockwell Circulator compression sock, offered in a handy two-pack, helps increase blood flow, decreases swelling and delivers excellent support. The gradient compression of this men's knee-high sock is greatest at the ankles and gradually decreases toward the top; blood pushes upward toward your heart, maximizing circulation. Moderate (15 - 20 mmHg) compression is recommended for all day and every-day wear, prolonged sitting or standing, travel, exercise and recovery and minor to moderate swelling. The wool/ nylon blend fabric balances durability and thermoregulation properties with naturally antimicrobial and luxurious bamboo, while a touch of spandex ensures a snug fit and helps prevent slipping. The Sockwell Circulator graduated compression sock comes in a multi-pack of two different colors, and is finished with a seam-free closure at the toe to reduce irritation.