Smart textiles are under research and development for about a decade now. The EU programme called Flex-Stretch fostered the general application from early on. Today knitted electronic components for sensors, the circuitry, capacitors and antennas can be seamlessly integrated into garments. A wide range of specialized yarns, being available today, allows very specific applications, e.g., LED integration (for professional decoration), RFID integration (for manufacturing and product monitoring), sensors and controller integration, mostly in the medical area (for industrial stress sensor system and hospital bed linen). These days Internet-of-Things (IoT) as well as applications in the agro-food area need flexible wireless systems, i.e. textile integrated and wearable antennas are needed especially. With this WS engineers from the RF-side as well as textile engineers should exchange their knowledge for the better of both disciplines.