Karl Meltzer talks 100 Mile Records, Hardest Ultra Marathon Races, and Top Trail Shoes

Karl Meltzer joins us to talk about his experiences as a pro ultra marathon runner. From UTMB, to Western States, to the Appalachian trail, take a look inside the mind of an ultra marathon legend who has won more 100 miles races than anyone in the world. Shop UltrAspire Speedgoat Belt: https://www.runningwarehouse.com/UltrAspire_Speedgoat_30_Belt/descpage-UASPDG3.html?from=youtube Shop HOKA Speedgoat: https://www.run...