A wearable protection device including a modular frame with at least two shaped members and hinge means for hinging the shaped members therebetween at corresponding hinging points and around respective rotation axes. Each of the hinge means includes a pivot element and a disc element which are permanently coupled by riveting of the pivot element. After the riveting, the pivot element (12) is closely aligned or flush with the disc element. Also provided is a method of assembling said wearable protection device and a motorcycle boot including the wearable protection device.