The athlete pictured above is named Sarah Reinertsen and she was the first woman on a prosthetic leg to complete the Hawaiian Ironman Triathlon. Which is an exhausting 2.4 mile swim, 112 mile bicycle ride, and a 26.2 mile run. A standard marathon by itself is 26.2 miles! Through virtually all of her races Reinertsen used a prosthetic blade. A prosthetic leg made for racing that is lightweight, flexible, and absorbs shock. One drawback was the bottom of the blade’s “foot”. She would use the soles of traditional running shoes and attach them to the bottom of the prosthetic blade to get traction. This proved to be unpredictable and unreliable. Then in 2006 she began working with Nike to develop a solution. The result is the Nike Sole. A detachable sole made specifically for the Össur’s Flex-Run prosthetic running blade.