SunStep® is the most recent of the technological innovations and comes from the continue effort in research and development of IGM. IGM now offer a unique product, realized by raw materials international patented and within the European law. The application of Sunstep to the raw material enables to change the color of the finished product in the presence of UV rays and it returns to be in the original color in absence of UV.

Info: http://www.sunstep.it