Rock your odd socks! Every year on March 21st, people around the world celebrate World Down Syndrome Day by wearing mismatched socks to show love and support for persons with Down syndrome. This pair is designed in collaboration with Nils Walter, the winner of an annual design competition organized by Happy Socks and Swedish National Down Syndrome Association. The set features Nils\' stunning musical design and a sock from our current collection. 10% of all net revenue from the Rock and Roll Sock style sold during March 2022, will be donated to SNDSA. Wear matching outfits! Available in adults and kids sizes.