A shock-absorbing elastic sheet comprises a single sheet of elastic
material having a flat sheet-like base portion and a large number of
semispherical protrusions integral with and projecting from one surface
of the flat base portion. The semispherical protrusions are arranged in
direct contact with one another such that every adjacent three or more of
the semispherical protrusions jointly define a valley therebetween. The
sheet-like base portion has a large number of breathing holes formed
therein, each of the breathing holes being located at a position
corresponding to the position of one of the respective valleys. A cushion
pad produced from the elastic sheet, a sole insert and a shoe in which
the cushion pad is incorporated are also disclosed.