Road Runner Sports Go Stronger, Longer Compression Socks :: Reduce post-run aches and pains, plus feel better through every mile when you add Road Runner Sports Go Stronger, Longer Compression Socks to your active attire. Get lower leg support for shin, calf muscles, all the way to the tips of your toes thanks to the responsive 95% nylon, 5% spandex fabric. You'll enjoy more power through every step and faster recovery time with the benefit of compression. Machine wash in cold water, line dry.