An orthotic insole comprising top, middle, and bottom layers. The top layer is in contact with a wearer's foot or a wrap of material, the bottom layer is adjacent to an outsole of the shoe, and the middle layer is positioned therebetween. The top layer has substantially the same width and length of the entire insole. The middle layer is a generally j-shaped strip which provides a rearfoot posting within the insole and a cupping effect to a wearer's heel. The middle layer may have a similar overall width as the top layer but may include a shorter length than the top layer such that the middle layer only extends from the heel to approximately the joint of the fifth metatarsal bone. The bottom layer may be more rigid than the other two layers, and may further include a rigid plate. The insole may further include an arch support integrally formed within one or more of the layers or a cushioning layer with one or more cushioning segments on top of the top layer.