Selected international designers, illustrators and artists were invited to submit designs for this one inch (25mm) button badge series. Stereohype sells B.I.O. (By Invitation Only) Series 11 badges separately and gives them away as a free surprise badge with selected Stereohype T-shirts. B.I.O. Series 11 includes artworks by Agathe Jacquillat / FL@33, Gaetan Billault, Holly T Burrows, Hort, Kristina Mörsdorf, Madeleine Stahel, Nitzan Hermon / Nitzan – Edit, Pierre-Paul Pariseau, Pixelgarten, Pomme Chan, Sarah Boris, Tomi Vollauschek / FL@33, Yee Ting Kuit. Released: May 2012