The IAAF has banned shoes before. The organization’s shoe rules are as follows: “Athletes may compete barefoot or with footwear on one or both feet. The purpose of shoes for competition is to give protection and stability to the feet and a firm grip on the ground. Such shoes, however, must not be constructed so as to give athletes any unfair assistance or advantage.”
Kipchoge's shoes spark backlash
Canadian Running Magazine (blog)
Ross Tucker and Steve Magness are two running experts who have ... The organization's shoe rules are as follows: “Athletes may compete barefoot or ...
And...
How Did Eliud Kipchoge Break the Marathon Record So Soon?
The New York Times
The shoes have enormous, spongy, springy soles. (Remember “barefoot running”? That era is over). If this performance was like walking on the moon, ...