Light Fairy is not only multi-function clothing to provide safety for cyclists, but fashion design clothing. In the past, the cyclist rode at night almost to improve the safety by lighting facilities. Light Fairy uses the new soft textile product – LED yarn, which is waterproof and water vapor permeable. It emphasizes the LED yarn linear-lighting character and the importance of careful riding no matter if in the dawn or the dusk. In addition, it becomes another warning light when rolling up. The lights are like several fireflies across the wonderful view.