While shoes incorporating lattice structures are already commercially available, they are generally not individually adapted to the wearer. The goal of this thesis is to develop a design approach for individualised 3D-printed cellular polymeric shoe soles. This requires knowledge about additive manufacturing processes, materials and lattice structures. The additive manufacturing process used for this thesis is selective laser sintering, a powder bed based process. Polyamide 12 and a thermoplastic polyurethane are selected, because they are suitable for this printing process and for shoe soles. To determine the mechanical properties of the used materials, so called dumbbell specimens are manufactured. They are printed in two directions to investigate the influence of the printing process on the mechanical properties. Monotonic and cyclic tension tests, as well as dynamic mechanical analyses are carried out. Furthermore, specimens for compression and tension tests are printed with different types of unit cells including newly developed structures, exhibiting anisotropic behaviour, which could be interesting for shoe soles. The influence of the volume fraction on the behaviour of a structure is also investigated. Based on the experimental characterisation of the dumbbell specimens, suitable material models are created and used to perform compression and tension test simulations of the lattice structures. A design method for shoe soles made of lattice structures is developed. Initial design processes and the automation of the process are based on a simple cuboid. In this thesis different types of software are examined and their suitability for the design process is discussed. Furthermore, two design approaches are developed. One approach uses the results of a finite element analysis, the other one uses colour images depicting the stress distribution. The developed design approach is then applied to a shoe sole model. Author Eva Heiml, BSc Masterarbeit Universität Linz 2021