The ZUJA 100% reflective running jacket is a high performance jacket that will help you stand out on the roads during hours of darkness as the jacket uses retro-reflection from the millions of reflective beads embedded in the silver material that reflect light back to the light source (ie a vehicle’s headlights) <br>Our designers have focused on the weight of the jacket to give you optimum comfort. <br>About the fabric: The reflective material gives you a 360 degree reflective surface so that any light from vehicles will reflect back to the driver and help you stand out in advance to give ‘astonishing reflectivity’. <br>The material is CE EN 20471 certified.