David Accessories via Amazon offers the Sooverki Unisex Knee-High Graduated Compression Socks 6-Pair Pack in Black for $18.99. Coupon code "23D5JA8H" cuts that to $14.62. (Additional colors are available for $15.39 after coupon.) Plus, Prime members receive free shipping, that's $4 off and the lowest price we could find. They're available in sizes S/M and L/XL. Deal ends December 12.

Update: The price has increased to $19.99 before coupon, $15.39 after.