An apparatus for selective holding of a footwear heel to a snow travel aid is provided. The apparatus is of the kind that comprise a base mountable to the snow travel aid, an upper portion slidable relative to the base and at least one forward connector for connecting the upper portion to the heel. The upper portion is rotatable on a generally vertical axis between a downhill position and at least one lateral release position. In this invention, the upper portion comprises at least one camming surface positioned such that rotation of the upper portion toward the lateral release position results in the upper portion translating rearwardly against an opposing force provided by a forward biasing device.