Women's size 8.5 Soft smooth knit mesh fabric upper with synthetic overlays Smooth leather upper in a closed back slip-on clog style Electrical Hazard (EH) Safe design - EH Safe tested ASTM F2892-11 for safety Padded collar and soft flannel fabric shoe lining for added comfort Relaxed Fit design for a roomier, more comfortable fit Sole is synthetic rubber, machine wash. Heel is approx. 1.5 inches thick. No discernible sign of wear to outsoles... Other than minor fading of insole printing, no flaws noted.