Warm winter hat. Warming fleece material on the inside and a windproof insert in the forehead area protect your head from cooling down under your helmet. Vaude uses 100% windproof, robust and 80% wind-repellent, breathable materials. These are strategically placed on the body to optimise the performance of mountain and bike athletes. More about wind protection in bike clothing and wind protection in mountain sports clothing. The high elasticity of the material is achieved by the elastane content and the knitted and woven construction. This offers maximum freedom of movement.