Adidas Adios Pro Evo 1

Good luck getting your hands on a pair of these. This carbon-plated super shoe is one of the lightest ever made at 4.87oz. These are not meant to last and are geared towards fast marathoners. This shoe isn't made for anyone running slower than 3:00 for a marathon. The durability and design of this shoe is similar to the throwaway Nike Mayfly racing flats that were good for 100k. If money is no object and every second counts these might be worth it.