![IAAF steps up investigation into fears over springs in Nike running shoes | Athletics | The Guardian IAAF steps up investigation into fears over springs in Nike running shoes | Athletics | The Guardian](https://i.guim.co.uk/img/media/278bf5db6b5a9f9ccb47f686bc3a94c9e7c9495b/326_192_1100_660/master/1100.jpg?width=1200&height=1200&quality=85&auto=format&fit=crop&s=55e85394b57520d2363ab947d6a2b21e)
IAAF steps up investigation into fears over springs in Nike running shoes | Athletics | The Guardian
![NIKE | NIKE WAFFLE RACING FLAT | MOON SHOE | SIZE 12.5 | Stadium Goods: The Ultimate Sneaker Collection Online | Collectibles | Sotheby's NIKE | NIKE WAFFLE RACING FLAT | MOON SHOE | SIZE 12.5 | Stadium Goods: The Ultimate Sneaker Collection Online | Collectibles | Sotheby's](https://sothebys-md.brightspotcdn.com/d2/00/895b7d684484983fa4804e7124d6/nike-moon-shoe-sothebys-0007-med-l.jpg)
NIKE | NIKE WAFFLE RACING FLAT | MOON SHOE | SIZE 12.5 | Stadium Goods: The Ultimate Sneaker Collection Online | Collectibles | Sotheby's
![NIKE | NIKE WAFFLE RACING FLAT | MOON SHOE | SIZE 12.5 | Stadium Goods: The Ultimate Sneaker Collection Online | Collectibles | Sotheby's NIKE | NIKE WAFFLE RACING FLAT | MOON SHOE | SIZE 12.5 | Stadium Goods: The Ultimate Sneaker Collection Online | Collectibles | Sotheby's](https://sothebys-md.brightspotcdn.com/c6/6a/5c26cd7d4167b6cf677dbeeacc01/nike-moon-shoe-sothebys-0015-fishingline-stitch.jpg)
NIKE | NIKE WAFFLE RACING FLAT | MOON SHOE | SIZE 12.5 | Stadium Goods: The Ultimate Sneaker Collection Online | Collectibles | Sotheby's
![NIKE | NIKE WAFFLE RACING FLAT | MOON SHOE | SIZE 12.5 | Stadium Goods: The Ultimate Sneaker Collection Online | Collectibles | Sotheby's NIKE | NIKE WAFFLE RACING FLAT | MOON SHOE | SIZE 12.5 | Stadium Goods: The Ultimate Sneaker Collection Online | Collectibles | Sotheby's](https://sothebys-md.brightspotcdn.com/e9/cf/daa1b1f342da8d0ed5daa24b46c3/nike-moon-shoe-sothebys-0012-out-opt01.jpg)
NIKE | NIKE WAFFLE RACING FLAT | MOON SHOE | SIZE 12.5 | Stadium Goods: The Ultimate Sneaker Collection Online | Collectibles | Sotheby's
![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/styles/medium/public/article-image/marathon_shoes.cc12_0.jpg?itok=-I36ArDc)
New shoe makes running 4 percent easier, 2-hour marathon possible, study shows | CU Boulder Today | University of Colorado Boulder
![NIKE | NIKE WAFFLE RACING FLAT | MOON SHOE | SIZE 12.5 | Stadium Goods: The Ultimate Sneaker Collection Online | Collectibles | Sotheby's NIKE | NIKE WAFFLE RACING FLAT | MOON SHOE | SIZE 12.5 | Stadium Goods: The Ultimate Sneaker Collection Online | Collectibles | Sotheby's](https://sothebys-md.brightspotcdn.com/f8/b4/71c1f3794b75b22356140c53fd80/nike-moon-shoe-sothebys-0013-out-opt02.jpg)
NIKE | NIKE WAFFLE RACING FLAT | MOON SHOE | SIZE 12.5 | Stadium Goods: The Ultimate Sneaker Collection Online | Collectibles | Sotheby's
![NIKE | NIKE WAFFLE RACING FLAT | MOON SHOE | SIZE 12.5 | Stadium Goods: The Ultimate Sneaker Collection Online | Collectibles | Sotheby's NIKE | NIKE WAFFLE RACING FLAT | MOON SHOE | SIZE 12.5 | Stadium Goods: The Ultimate Sneaker Collection Online | Collectibles | Sotheby's](https://sothebys-md.brightspotcdn.com/f2/7d/5e633dc7435b937a3bfbf06efea1/nike-moon-shoe-sothebys-0008-out-l.jpg)