Saddle comprising a central part having a top surface for providing a seat to a rider, a lower surface having a curvature for adapting to a back of a horse, elongated pad members coupled to said central part for forming a cushion, connecting places for mechanically coupling a reinforcing member to said central part for imposing a given curvature to said lower surface. The saddle is characterized in that it further comprises a hinge, mechanically coupled to the lower surface of the central part, for facilitating a modification of said curvature, and for coupling a reinforcing member to said central part, said connecting places being located on a portion of the hinge that is accessible from the lower surface of the central part.