The present disclosure relates to a reinforcement structure for a vehicle. The reinforcement structure has a main extension direction and comprises a first portion and a second portion. The first portion comprises, or consists of, a more ductile material than the second portion. The first portion and the second portion are joined to each other in an overlap zone extending along the main extension direction, such that the first portion and the second portion extend parallel to each other along the main extension direction in the overlap zone. The present disclosure also concerns a vehicle comprising at least one such reinforcement structure. The disclosure further relates to a method for manufacturing a reinforcement structure.