First time I've seen these

Recovery shoes ?

The recolite 180 slides look like fancy crocs. Keep seeing Martin Beale and martin Indge amongst others wearing crocs after races.

not strictly running shoes but interesting

http://www.invodo.com/Inov-8-Recolit...hoe/p/M79Z1O5E
http://www.invodo.com/Inov-8-Recolit...hoe/p/T5GTCKYB