An apparatus comprising a stability layer dimensioned to be positioned
within a shoe. The apparatus may comprise a stability wall extending
downward from a heel portion of the stability layer. The stability wall
may comprise a back section dimensioned to curve around a back side of
the heel portion. The stability wall may also comprise at least one of a
lateral side section and/or a medial side section. The lateral side
section may extend along a lateral side of the heel portion and the
medial side section may extend along a medial side of the heel portion. A
method may comprise providing a stability layer and a midsole layer. The
method may also comprise positioning the stability layer on the midsole
layer.