These Running Socks, originally $9.99-$29.99, drop to $12.98-$20.99 when you enter the promo code 8S3X9KCC during checkout at Joejck via Amazon. Shipping is free when you use a Prime account or free Prime trial. Shipping is also free when you spend $25 or more. Otherwise, it adds $5.99. We couldn't find this deal anywhere else, but similar packs start at $14. These socks have a reinforced toe and thick heel tab. They are available in different colors in single, 3-, or 6-packs. This includes the pictured 3-pack in black, which falls from $19.99 to $13.99. Sales tax is charged in most states.