The Mens Hydropore Jacket from Jack Wolfskin is a fleece and a functional top in one and it is therefore ideal for demanding trails, jogging, speed hiking or any other outdoor activity you choose to do. The secret lies in the Hydropore fabric. The fabric scores top marks for its functional attributes. The fine loop structure ensures good moisture management and it dries super fast. Hydropore also protects you from UV rays and has odour-inhibiting properties.