Make DIY E-textile flex sensor combining resistive materials like velostat or Eeonyx fabric and conductive…
Hybrid PCBs Rigid flex PCB Stretch PCBs STELLA Project >> http://www.izm.fraunhofer.de/en/abteilungen/system_integrationinterconnectiontechnologies/arbeitsgebiete/system-in-packagebysubstrateintegration/stretchable-electronics.html