I'm not ashamed to say that I worked on reshearch and development for those things (along with lots of other outdoor clothing/footware).
They were a concept item at the time and it was to demonstrate the technology in making sole units for flexible shoes, the theory being "wouldn't it be great if your feet had Vibram Soles" (not a plug)
I will be the first to admit they look ridiculus - I never thought they would be actualy made!!!
