![New shoe makes running 4 percent easier, 2-hour marathon possible, study shows | CU Boulder Today | University of Colorado Boulder New shoe makes running 4 percent easier, 2-hour marathon possible, study shows | CU Boulder Today | University of Colorado Boulder](https://www.colorado.edu/today/sites/default/files/article-thumbnail/bostonmarathon.jpg)
New shoe makes running 4 percent easier, 2-hour marathon possible, study shows | CU Boulder Today | University of Colorado Boulder
![What it will actually take to break the 2-hour marathon barrier, according to science - Men's Journal What it will actually take to break the 2-hour marathon barrier, according to science - Men's Journal](https://www.mensjournal.com/.image/ar_1:1%2Cc_fill%2Ccs_srgb%2Cfl_progressive%2Cq_auto:good%2Cw_1200/MTk2MTM2NTYzNDUyMjI0NjU3/eliud-kipchoge-wins-the-2016-olympic-marathon-in-rio-de-janiero.jpg)
What it will actually take to break the 2-hour marathon barrier, according to science - Men's Journal
![Nike Wants Athletes to Run a Marathon in Under Two Hours, So It's Rebuilding the Race. And the Runners | WIRED Nike Wants Athletes to Run a Marathon in Under Two Hours, So It's Rebuilding the Race. And the Runners | WIRED](https://dwgyu36up6iuz.cloudfront.net/heru80fdn/image/upload/c_fill,d_placeholder_wired.png,fl_progressive,g_face,h_450,q_80,w_800/v1571083667/wired_how-the-2-hour-marathon-limit-was-broken.jpg)
Nike Wants Athletes to Run a Marathon in Under Two Hours, So It's Rebuilding the Race. And the Runners | WIRED
![Nike Vaporfly Shoes Helped Eliud Kipchoge Run a Marathon in Under 2 Hours. Should They Be Banned? | Inc.com Nike Vaporfly Shoes Helped Eliud Kipchoge Run a Marathon in Under 2 Hours. Should They Be Banned? | Inc.com](https://www.incimages.com/uploaded_files/image/1024x576/getty_1175367731_2000145020009280346_405176.jpg)