I keep seeing these shoes - they're kind of a sandal/heel/bootie hybrid. Is there a name for them?

http://www.zappos.com/clarks-s.....?zlfid=111

http://www.zappos.com/indigo-b.....?zlfid=111

http://www.zappos.com/indigo-b.....?zlfid=111

http://www.zappos.com/sofft-pa.....?zlfid=111

http://www.zappos.com/b-makows.....ck-leather

http://www.zappos.com/dknyc-li.....rap-cognac

http://www.zappos.com/dknyc-milaan-steel