To prevent rain from putting the brakes on your best time. Thanks to innovative X-BIONIC® technology, the innovative X-BIONIC® RainSphere shirt combines the benefits of a highly elastic high-tech shirt and an ultralight rain jacket. Its key asset: the patented, integrated 3D Bionic Sphere® system for efficient evaporation of sweat with pleasant residual moisture and cooling effect. A special membrane forms the highly functional outer shell. It feels very pleasing on the skin and extremely flexible; it doesn’t flutter in the wind, it’s extremely light and requires little space for packing. The X-BIONIC® RainSphere shirt even proves itself in dry weather conditions. And if you do indeed run into some bad weather, the RainSphere shirt provides moisture protection of rain jacket quality.