Alters foot biomechanics and the triplane action of dorsiflexion, eversion and abduction at the rearfoot. Available in S, M, L. Attaches to the under-surface of Formthoticsâ„¢. May be used as a medial or a lateral wedge. Has a 3D cup around the heel. Provides quick, easy alignment, and is designed for accurate integration with arch support. Minimal bulk & self-adhesive.