A modular snow travel system for common footwear includes a first traction component which may be an overboot. The first traction component includes at least one traction cleat having latch, such as an exposed hook portion, for engagement with a snowdeck. The engagement is effected by a releasable locking mechanism on the snowdeck. The releasable locking mechanism includes a transversely movable slider and a longitudinally movable slider having contacting cam faces. The lateral position of the transverse slider determines the longitudinal position of the longitudinal slider so that the longitudinal slider could be moved longitudinally to and from a position where a catch on the longitudinal slider is engaged in the hook portion or is disengaged from the latch of the traction cleat.