A composite panel comprising a first composite skin having a first fabric layer positioned between a first Kraft paper layer and a second Kraft paper layer; a second composite skin having a second fabric layer positioned between a third Kraft paper layer and a fourth Kraft paper layer; a foam core bonded to the first composite skin and to the second composite skin; and a binding composition applied to the first fabric layer and to the second fabric layer and penetrating the second Kraft paper layer and the third Kraft paper layer so that the first composite skin is bonded to a first surface of the foam core and the second composite skin is bonded to a second surface of the foam core, the binding composition being a bio resin.