Insoles can provide targeted relief for the feet of diabetics in already damaged areas. For this purpose, the shape and, in particular, the local hardness (stiffness) of the soles must be adapted to suit the patient's foot. With the method developed in the “LAuF“ joint project, orthopedic shoe technicians can design such insoles individually for each patient on the computer and produce the result with a 3D printer. By combining different three-dimensional structures in the sole, their local stiffness can be digitally adjusted. Compared to handmade production, the sole can thus be adjusted much more finely to the patient's foot. In addition, the digitalized process enables the product to be evaluated scientifically: Since the data was previously recorded digitally, the mechanical properties of the insoles, for example, can be better analyzed. This enables the orthopedic effects of the insoles to be assessed on a patient-specific basis and, if necessary, the soles can be optimized in a more targeted manner.