The 2XU Compression Race Sock is all business, with superior muscle containment and graduated compression to ensure maximum circulation. Light and breathable, this sock is an old favorite for training or competition. With ananatomical foot beds that channels for air and moisture management, this sock will provide comfort running a marathon or recovering on the couch!ACTIVE USE, Running, Triathlon, Endurance/Aerobic Activities, General Sports, Training and Compeitions, Outdoor ActivitiesRECOVERY USE, Post Workout or Competition, Extended periods in a static or sedentary position, Sleeping, Rehab from Injury or Surgery, DVT Protection When Traveling.