A ghost that you'll fall in love with – the new GHOST 4 matches the excellence of its award-winning predecessors, offering an updated version that includes DNA ™, redesigned flex grooves, Tongue Tied lacing and Caterpillar Crashpad. The shoe incorporates a sole partially reshaped in the forefoot area that gives the runner a stable upright footing and flexibility in motion. Tongue Tied lacing prevents the tongue from sliding out of position during your run. The perfect ghost.