A wearable magnetic device, a method for subjecting a body region to a magnetic field and a set of parts. The wearable magnetic device comprises a magnetic structure configured to generate a magnetic field in a field area of the device an auxiliary magnet connected to the magnetic structure and configured to increase the intensity of the magnetic field in the field area of the device and a fastener wherein the auxiliary magnet and the fastener are configured to magnetically secure the fastener on a side of the auxiliary magnet facing away from the field area of the device with a piece of fabric or a piece of garment disposed between the auxiliary magnet and the fastener.
