Looks like she has the carbon plated Nike Distance Spike in the 5000m at Melbourne. Definitely not a current shoe and looked awfully close to the sole Muir has. She was bouncing around at the start line in them.
Maybe someone with some technical skills can get a picture.
So what will Nike do to keep normal people from being able to buy them on the limited release to meet the reauirements? Will they secretly buy them up at release using third party people? Will they release them to some obscure store to make sure no one gets these shoes?