A clog type shoe which includes a sole and an upper auached to the sole. The upper includes an opening through which a foot is placed. A drawstring tunnel is formed to encircle the opening and a drawstring is threaded through the drawstring tunnel. The drawstring can be tightened so that the opening...http://www.google.co.uk/patents/US5678325?utm_source=gb-gplus-sharePatent US5678325 - Clog type shoe with a drawstring
