Certifiably Comfortable™Made for on-the-job comfort. Roomy by design like the original Classic Clog, the Mercy Work Clog offers generous room all around the foot. It has Crocs Lock™ tread for slip-resistance, a heel-hugging backstrap, and a closed heel.Women’s Mercy Work Clog Details:Roomy fit, like our original clogs, for maximum comfortDesigned for work environments: laboratories, schools, medical facilities and moreCrocs Lock™ slip-resistant treadEasy to clean with soap and water1.3-inch / 34mm heel heightTiny nubs along the footbed provide a massage-like feelEnhanced arch support and footbedPivoting heel straps for a more secure fitIconic Crocs Comfort™: Lightweight. Flexible. 360-degree comfort.ASTM F2913-11 tested, CE CertifiedMeets or exceeds EN ISO 20347:2012, OB, SRC.