An apparatus for sanitising soles of footwear, comprising a supporting structure, a bearing surface that is movable relative to the supporting structure in a bearing direction of a user's foot, a reservoir for containing sanitising fluid and a delivery unit for delivering the sanitising fluid towards the bearing surface at a bearing portion of the user's foot. The apparatus further comprises a compressible member that is operatively associable with the bearing surface in such a way that the compressible member is compressed as a result of a movement of the bearing surface in the bearing direction.