Tigist Assefa of Ethiopia obliterated the fastest marathon ever run by a woman, but it's her brand new shoes that are raising eyebrows. 1 weather alerts 1 closings/delays. Watch Now ...

Tigist Assefa wearing the $500 shoe on Sunday. REUTERS. Weighing just 5 ounces, the shoes are very light, but not durable. They’re designed to be worn for a single marathon-distance race (26 ...

Kenya's Ruth Chepngetich, who won last year's Chicago marathon in record time, has been provisionally suspended after testing ...

Tigist Assefa of Ethiopia obliterated the fastest marathon ever run by a woman, but it's her brand new shoes that are raising eyebrows. 1 weather alerts 1 closings/delays. Watch Now ...

Tigist Assefa of Ethiopia obliterated the fastest marathon ever run by a woman, but it's her brand new shoes that are raising eyebrows. 1 weather alerts 1 closings/delays. Watch Now ...

Tigist Assefa of Ethiopia obliterated the fastest marathon ever run by a woman, but it's her brand new shoes that are raising eyebrows. 1 weather alerts 1 closings/delays. Watch Now ...

Tigist Assefa of Ethiopia obliterated the fastest marathon ever run by a woman, but it's her brand new shoes that are raising eyebrows. 1 weather alerts 1 closings/delays. Watch Now ...