Bought these socks for my daughter who has to fly or drive (long distances) every week for her job.  She was experiencing lower leg swelling and aching. Her Doctor recommended compression socks for use when sitting long periods of time like driving or flying.  These have worked well and she no long suffers leg swelling/or pain in legs.  She liked them so well that she asked me to place another order as she is often away from home for 2 to 3 weeks at a time.