Sock Panda Father’s Day Sale – 20% Off First Month! Last updated by Brandy on June 5, 2015. Subscription Box Coupons & Deals / Sock Panda Coupons Hello Subscription may earn compensation via links in this post. Read the full disclosure Save for Later Notification Sock Panda has a Father’s Day Sale – save 20% on the first month of your Sock Panda subscription with code DAD20. Exp 6/21. They have a special gift box, too: a box of 6 pairs of luxury socks for $60 See all our Sock Panda reviews to find out more, and visit Sock Panda to subscribe.