A shoe insole may include a compressible soft material: a first fiberboard layer below the compressible soft material: a composite rigid stiffener layer below the first fiberboard layer, the composite stiffener layer extending over no more than 60% of the area of the insole: a rigid and flexible composite shank layer below the composite stiffener layer; and a reinforcement layer. A shoe such as a high-heeled shoe may include such an insole.

A shoe insole may include a compressible soft material: a first fiberboard layer below the compressible soft material: a composite rigid stiffener layer below the first fiberboard layer, the composite stiffener layer extending over no more than 60% of the area of the insole: a rigid and flexible composite shank layer below the composite stiffener layer; and a reinforcement layer. A shoe such as a high-heeled shoe may include such an insole.