LEDs are sewn on cross-stitch canvas, due to the neat grid of the canvas, e-textile with neat circuit pattern can be produced! In this example, Osram's TopLED is employed, which is an type of LED with two metal wings. The conductive threads is passed through the wings and then the wings are fastened, and the LEDs are sewn on the canvas by a similar principle of threading beads. This method avoids the soldering work to connect the conductive threads with the LED, which greatly increases the flexibility of the wearable device. As long as it is a process involving soldering work, the solder joints will eventually break due to too many bending cycles. The LEDs can also withstand machine washing without worrying about damage to the device due to water ingress or the mechanical force of machine washing. The conductive threads used here is manufactured by Karl Grimm Company.