The invention relates to an end cap, in particular for a pressure vessel for storing pressurized fluids, said end cap being made as a hybrid structure from a thermoplastic prepreg that is overmolded with a reinforcement structure. In the disclosed method, the end cap is manufactured by - heating a sheet of thermoplastic prepreg in a first step, - shaping the heated thermoplastic prepreg, which has been placed in a combined shaping-injection mold, during the closing movement of the combined shaping-injection mold in a second step, and - overmolding the thermoplastic prepreg with a plastic mass in a third step such that a ribbed reinforcement structure is formed that increases the mechanical resistance of the end cap to loads occurring during operation. The invention further relates to a pressure vessel comprising at least one end cap according to the invention; in said pressure vessel, an end cap is connected to a second end cap, or an end cap is connected to at least one other vessel element, by wrapping at least one tape around at least some portions of the same.