Wearing Nike Vaporflys, Eliud Kipchoge ran a marathon under two hours.
There is no question that Kipchoge is a great athlete who has been dominating his sport for some time. However, the latest generation of Nike shoes he was wearing may have partly accounted for his extraordinary feat. The midsoles of the Vaporfly are designed to help athletes run more efficiently and cut their marathon times by 3 to 4%. To ensure fairness in competition, experts are reviewing whether shoe design should be subject to specific standards.
Video Spotlight: Is the Vaporfly for You?
This post is based on The New York Times article, Those Superfast Nike Shoes Are Creating a Problem, by A. Burfoot, October 19, 2019, and the YouTube video, Nike Vaporfly 4% Flyknit Review: Worth $250?, by Triathlon Taren, April 3, 2019. Image source: Shutterstock/Rocksweeper.
1. What design features make the Nike Vaporfly a superior shoe?
Guidance: The Nike Vaporflys have a thicker midsole which, with the right materials, produces more spring. The right materials are a special foam called Pebax and a carbon fiber plate. Pebax is extremely lightweight and delivers more energy return. The carbon fiber plate in Continue reading