Abstract: Systems for a shoe sole with at least one piezoelectric element for generating electrical energy. In some embodiments, a system for a shoe sole comprises (a.) at least one piezo element adapted to produce an electrical signal upon mechanical deformation of the at least one piezo element, (b.) at least one first energy storage and at least one second energy storage, wherein the at least one first energy storage and the at least one second energy storage are adapted to store electrical energy obtained from the electrical signal, and (c.) at least one converter unit adapted to selectively control a transfer of an amount of electrical energy between the at least one first energy storage and the at least one second energy storage.

Abstract: The present invention relates to a sole for a shoe, in particular a running shoe. The shoe comprises a sole component and at least one loose particle(s) contained within the sole component. The loose particles provide haptic feedback to a user of the sole during an athletic activity.

Abstract: An article of sports apparel being customized for a person is provided, and may be manufactured based on a digital model, the digital model built based on received sensor data, the received sensor data obtained by at least one sensor integrated into another article of sports apparel, and the sensor data is obtained while the other article of sports apparel is worn by the person during a sports activity.

Abstract: An article of sports apparel being customized for a person is provided, and may be manufactured based on a digital model, the digital model built based on received sensor data, the received sensor data obtained by at least one sensor integrated into another article of sports apparel, and the sensor data is obtained while the other article of sports apparel is worn by the person during a sports activity.

Abstract: A system for a shoe sole with at least one module is provided, the module including at least one piezoelectric element adapted to produce an electrical signal upon mechanical deformation of the at least one piezo element. The electrical signal is adapted to be used as signal for deriving at least one motion parameter of the shoe sole. The system further includes at least a first energy storage and a second energy storage, the at least first energy storage and second energy storages being adapted to store electrical energy obtained from the electrical signal, and the second energy storage is loaded only after the first energy storage reaches a first energy threshold.