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The fastest shoe when it comes to personal bests in marathons or road races has been developed for you together with Eliud Kipchoge, the man who broke the 2-hour marathon mark.
We at Top4Running tested this shoe for you and decided to join the French 800m Olympic competitor Benjamin Robert and Swedish runner Julia Samuelsson on a treadmill to recreate the typical prototyping process.
Are you ready for the greatest energy return running shoe ever?