GearXS via eBay offers Four Pairs of Fila Ankle Socks in Men's Lo-Cut (pictured), Women's Lo-Cut, or Men's Quarter Cut for $6.99 with free shipping ($1.75/pair). That's the lowest total price we could find for this quantity by $13. (We listed an 6-pack for $10 in June.)

Of note, these ship in bulk packaging.