03/28/2008 02:45 am ET Updated May 25, 2011

Crocs Debut Hole-Less Sandals

Responding to concerns about the safety of its funky resin shoes, Crocs (CROX) said Monday it is introducing two models aimed at medical professionals that will come without the distinctive holes of its traditional styles.

The new shoes are made with the company's patented proprietary closed-cell resin and offer a thicker layer of protection for the top of the foot, Crocs said in a statement.

Concerns have been raised that doctors and nurses wearing Crocs could be injured if instruments or needles fell through the holes. Other worries have been raised about whether Crocs generate static electricity that can knock out medical equipment.