A new hybrid 3D printing technique developed at the Wyss Institute at Harvard University, Harvard’s John A. Paulson School of Engineering and Applied Sciences, and the Air Force Research Laboratory combines stretchable conductive inks and electronic components into flexible, durable wearable devices that move with the body and offer increased programmability. This research was supported by the Wyss Institute, Harvard SEAS, AFRL and GETTYLAB. Credit: Wyss Institute at Harvard University.