A foamed sole according to the present invention includes a foam molding containing a rubber component and a resin component, wherein the maximum value of a loss factor [tan δ] at a frequency of 10 Hz and at 30° C. to 80° C. of the foam molding is 0.18 or less, and a peak of a loss factor [tan δ] at a frequency of 10 Hz of the foam molding lies within the range of 100° C. or higher. The foamed sole has a feature that it hardly shrinks when it is heated.