Happy Socks takes 40% off sitewide as part of its Black Friday Sale. (Prices are as marked.) Plus, all orders net free shipping. That's the strongest sale we've seen this year from Happy Socks. Some exclusions apply. Deal ends November 27.

Update: Even better, for members, Costco offers this Happy Socks Men's Dress Sock 4-Pair pack for $7.99 with free shipping. That's lower than anything we could find direct from Happy Socks.