![adidas Running on Twitter: adidas Running on Twitter:](https://pbs.twimg.com/media/EhIcP6jX0AAv1Ax.jpg:large)
adidas Running on Twitter: "“You don't train every day to achieve what you know is in your reach. You train to achieve what is at the very edge of your limit”
![It stretches the limits of performance': the race to make the world's fastest running shoe | Running | The Guardian It stretches the limits of performance': the race to make the world's fastest running shoe | Running | The Guardian](https://i.guim.co.uk/img/media/cc8d03039454c146ddf523d17bce945e38b8b238/414_274_2474_1484/master/2474.jpg?width=1200&height=1200&quality=85&auto=format&fit=crop&s=0698abd7a5703971b0a8e91671c3ab9d)
It stretches the limits of performance': the race to make the world's fastest running shoe | Running | The Guardian
![RunnersWeb Athletics: adidas, Boston Athletic Association and Marathon Sports Team Up to Open First RunBase in U.S. RunnersWeb Athletics: adidas, Boston Athletic Association and Marathon Sports Team Up to Open First RunBase in U.S.](https://runnersweb.com/running/images_2015/RunBase_20150416-1.jpg)