Sole for a running shoe

A sole for a running shoe having a midsole (1), the midsole (1) comprising:

• a soft-elastic top layer (2) and a separate soft-elastic bottom layer (3), wherein a flexurally elastic incompressible plate (4) extending from an inner sidewall to an outer sidewall of the midsole (1) and exposed along at least one the inner sidewall and the outer sidewall from a heel area, across a midfoot area, and through a forefoot area of the sole such that the plate continuously descends along the at least one of the inner sidewall and outer sidewall from the heel area to the midfoot area and continuously ascends from the midfoot area through the forefoot area, the flexurally elastic incompressible plate (4) is in a vertical direction (V) arranged between and divides the top layer (2) and the separate bottom layer (3), and wherein the top layer (2) comprises a plurality of channels (21a, 21b, 21c) extending in a transverse direction (Q), and wherein the bottom layer (3) comprises a plurality of channels (31a, 31b, 31c) extending in the transverse direction (Q), wherein the channels of the top layer (2) are separated from the channels of the bottom layer by the flexurally elastic incompressible plate (4) and wherein the channels in the top layer (2) do not overlap in the vertical direction with the channels in the bottom layer (3), and wherein the channels of the bottom layer (3) are delimited by the soft-elastic bottom layer (3) and by the flexurally elastic incompressible plate (4), wherein channels in the top layer (2) and/or the bottom layer (3) extend in each of the heel area (FB), the midfoot area (MFB), and the forefoot area (VFB), wherein 10 to 35% of a surface of the flexurally elastic incompressible plate (4) is exposed by the channels in the bottom layer (3), and wherein the channels (31a, 31b, 31c) of the bottom layer (3) are deformable vertically (V) and/or horizontally in a longitudinal direction (L) under action of forces acting vertically (V) and/or in the longitudinal direction (L) and occurring during running.