A foot support insole having four different versions, each providing differing degrees of arch support for use in any shoe or boot. The insole is biomechanically shaped to support the medial arch, the lateral arch, the metatarsal arch, and the heel. In each of these versions, the principal variable is the extent of support for the medial arch. Low, medium, high, and extreme foot support versions are disclosed. The insole design effectively distributes the weight-generated forces provided by the user into a neutral plantigrade position. Supporting the neutral position for the foot obtains optimum balance and weight distribution by dispersing the forces applied by the foot over the greatest area possible within the shoe. The insole allows the three foot arches to work together and function as a structural support tripod, alternatively absorbing compressive forces and recoiling into a stable support state.