A device for releasably securing a shoe relative to a support comprising: a cleat mountable to a shoe and including a front portion and a rear footing; and a receiver mountable to a support of an external device and comprising a base including: a rear portion to removably slidably receive the rear footing of the cleat, and a front portion comprising a catch element, which is pivotally movable relative to the base while under a rotational biasing force in a first orientation, to permit slidable entry of, and retention of, the front portion of the cleat relative to the base, wherein the catch element comprises a front edge portion to engage a the front portion of the cleat, the front edge portion of the catch element comprising: a pair of outer side wall portions (1285A, 1285B) laterally spaced apart along the front edge portion; a central wall portion interposed between the outer side wall portions; and a pair of vertices (1280A, 1280B), with each vertex formed by a junction between a respective one of the outer side wall portions and the central portion, wherein the vertices are sized and shaped to be complementary with at least a portion of a pair of first recesses (1138A, 1138B) in a front edge portion of the cleat; wherein, upon exertion of an external force via the shoe laterally in a second orientation perpendicular to the first orientation, lateral sliding forcible movement of the front portion of the cleat overcomes at least a downward component of the rotational biasing force to cause rotation of the catch element in a third orientation, opposite the first orientation, to permit further slidable lateral movement, and release of, the front portion of the cleat relative to the catch element. a cleat mountable to a shoe and including a front portion and a rear footing; and a receiver mountable to a support of an external device and comprising a base including: a rear portion to removably slidably receive the rear footing of the cleat, and a front portion comprising a catch element, which is pivotally movable relative to the base while under a rotational biasing force in a first orientation, to permit slidable entry of, and retention of, the front portion of the cleat relative to the base, wherein the catch element comprises a front edge portion to engage a the front portion of the cleat, the front edge portion of the catch element comprising: a pair of outer side wall portions (1285A, 1285B) laterally spaced apart along the front edge portion; a central wall portion interposed between the outer side wall portions; and a pair of vertices (1280A, 1280B), with each vertex formed by a junction between a respective one of the outer side wall portions and the central portion, wherein the vertices are sized and shaped to be complementary with at least a portion of a pair of first recesses (1138A, 1138B) in a front edge portion of the cleat; a rear portion to removably slidably receive the rear footing of the cleat, and a front portion comprising a catch element, which is pivotally movable relative to the base while under a rotational biasing force in a first orientation, to permit slidable entry of, and retention of, the front portion of the cleat relative to the base, wherein the catch element comprises a front edge portion to engage a the front portion of the cleat, the front edge portion of the catch element comprising: a pair of outer side wall portions (1285A, 1285B) laterally spaced apart along the front edge portion; a central wall portion interposed between the outer side wall portions; and a pair of vertices (1280A, 1280B), with each vertex formed by a junction between a respective one of the outer side wall portions and the central portion, wherein the vertices are sized and shaped to be complementary with at least a portion of a pair of first recesses (1138A, 1138B) in a front edge portion of the cleat; a pair of outer side wall portions (1285A, 1285B) laterally spaced apart along the front edge portion; a central wall portion interposed between the outer side wall portions; and a pair of vertices (1280A, 1280B), with each vertex formed by a junction between a respective one of the outer side wall portions and the central portion, wherein the vertices are sized and shaped to be complementary with at least a portion of a pair of first recesses (1138A, 1138B) in a front edge portion of the cleat; wherein, upon exertion of an external force via the shoe laterally in a second orientation perpendicular to the first orientation, lateral sliding forcible movement of the front portion of the cleat overcomes at least a downward component of the rotational biasing force to cause rotation of the catch element in a third orientation, opposite the first orientation, to permit further slidable lateral movement, and release of, the front portion of the cleat relative to the catch element.