Abstract: A sole capable of being integrated in a boot or shoe and a method of assembling the same. The sole comprises an outsole, made of at least a first material, which defines an exterior lateral shape and an inner space for receiving a filling material and a housing for receiving a rigid mechanical device having protrusions that extend through corresponding openings of the sole. A wall surrounding the housing, made of the first material, has a minimum thickness of 20 mils. A portion of the wall is shared with a heel-section of the outsole. A seal plate is provided for, at least partly, covering the wall. the seal plate is for preventing the filling material from entering the housing. The filling material, once the sole is assembled, comprises a layer covering the seal plate and the sole conceals the mechanical device except for the protrusions.