Amazon offers Prime members the Saucony Men's Performance No-Show Sock 6-Pack in Black Assorted, Grey/Black Assorted, or White/Grey for $12.99 with free shipping. (Non-members can spend $35 or more to qualify for free shipping; otherwise, shipping costs $5.48.) That's the lowest total price we could find by $11. These socks are 95% polyester, 3% rubber, and 2% spandex and fit shoe sizes from 8 to 12.