The invention relates to a hose made of a thermoplastic polymer comprising a core and a cover provided with a reinforcement, in particular in the form of a multilayer reinforcing structure, wherein each core and cover consists of a thermoplastic polymer and wherein, according to the invention, an intermediate coupling layer is incorporated into the core and/or cover material by welding and is connected in the form of a reinforcement. The appropriated variants of the embodiment of the intermediate coupling layer are also enclosed.