Amazon.com has some Under Armour socks marked down.
Update: All the ones I see now say add on item
Under Armour Mens Twist Tech Crew $2.48 (Royal) Add on item
https://www.amazon.com/Under-Armo…00VSX5JF
Under Armour Men’s Hitch Lite II Crew Boot Socks $3.75 (Deep Red) Add on item
https://www.amazon.com/Under-Armo…th=1&psc
Under Armour Men’s Baseball Crew Socks $2.12 (Black/White) Add on item
https://www.amazon.com/Under-Armo…00F0UEVQ
Under Armour Men’s All Sport Performance Over-the-Calf Socks $2.64 Add on item
https://www.amazon.com/Under-Armo…00BGPCWM
Under Armour Mens Baseball Otc 2Pk $3.60 Add on item
https://www.amazon.com/Under-Armo…01CVFAID
More socks