The supporting layer features an embossed pattern of ribbings that surround a uniform array of hexagon-shaped cavities that are uniquely elongated in the running direction. The resulting honeycomb-shaped geometric construction is deformable in three dimensions. Ribbings are spaced and positioned to facilitate the lateral deformation of the surface, expediting the rolling of the foot from the 5th metatarsus to the 1st metatarsus while providing continuous foot support and reducing lower-leg lateral movement. As a result, athlete contact with the surface is minimized, foot stability is enhanced, and movement efficiency is maximized with significant improvement in athletic comfort and performance. The unique, elongated honeycomb-shaped backing geometry is protected under industrial design law.