The neuro is a performance enhancer like no other built for speed this shoe takes a brilliant fit and biomechanics to a new level propulsion pods blown rubber filled with biomogo dna give adaptive cushioning and efficient energy return hammock system wraps underfoot and tightens through the eyelets to provide an incredible fit gearing mechanism allows heel and forefoot to move independently for a more powerful push off with dual toe flex that engages the natural balance of your foot gui