These are an innovative running shoe that have a cantilever under the forefoot to encourage a forefoot strike pattern.
Curated Resources:
http://foot-health-forum.com/index.php?threads/new-innovative-running-shoe-from-ampla.110120/ (Foot Health Forum)
http://www.podiatry.help/the-ampla-running-shoe/ (Podiatry Help)
http://podiapaedia.org/wiki/sports-medicine/individual-sports/running/running-shoes/ampla/ (PodiaPaedia)
http://www.podiatry-arena.com/podiatry-forum/showthread.php?t=100334 (Podiatry Arena)
http://www.ipodiatry.org/new-innovative-running-shoe-from-ampla/19173 (iPodiatry)