On eBay they are selling Adidas crew socks $7 for 3 pairs ($7.5 for the white colour).
Also available on Amazon for the same price.
*Amex users, pair this with the eBay buy $15 get $5 credit for bigger discount
Also available on Amazon for the same price.
*Amex users, pair this with the eBay buy $15 get $5 credit for bigger discount