A draining insole for shoes that dislodges foreign objects therein is disclosed; the insole has a plurality of bridges projecting from the insole and with an upper surface on top of which the foot rests; the bridges extending wide-wise of the insole and separately distributed from each other alongside thereof. The insole also includes a plurality of channels, each one of the same separating a bridge from the other; each channel having a pair of open ends and a bottom with a gabled surface. In turn, these bridges are joined at areas where the foot might get hurt; each end of the channel is in fluid communication with one draining hole included in the shoe in order to dislodge foreign matter located at the insole.