Crocs At Work ON THE CLOCK Womens Work Trainers in Triple Black. These trainers feature a nubuck upper material and a textile lining, with a durable rubber sole. They have a lace-up closure and are designed with breathability and comfort in mind. The round toe shape and narrow shoe width provide a snug fit. Key features include: * Low heel height (2.5-4.9cm) * Low top shoe shaft height * Safety Trainers style * Safety Features: Anti-Static Sole, Cleated Sole, Energy Absorbing Heel, Fuel/Oil Resistant Sole, Slip Resistant Sole * Safety Standard: EN ISO 20347:2012, OB, SRC * Safety Classification: SRC Product Code: 209476-0WC.