Abstract: The present invention relates to a retroreflective, elongated, filamentous product, comprising a core of non-metallic filamentous material; a first polymer matrix layer comprising a polymer resin, located around an outer peripheral surface of, and penetrating into, the core of non/metallic filamentous material; a reflective material located on an outer peripheral surface of said first polymer matrix layer; a second polymer matrix layer comprising a polymer resin, forming a primer layer on top of said reflective material; and a plurality of refractive microparticles distributed in said second polymer matrix primer layer, wherein said plurality of refractive microparticles is partially embedded in said second polymer matrix primer layer. A process for making the product and uses thereof are also disclosed.