A comfortable favorite gets serious with the SKECHERS Work: Relaxed Fit - Sure Track shoe. It features a smooth leather upper in a slip-on casual, slip-resistant work shoe with stitching accents and a Memory Foam insole. The shoe has a smooth, solid leather upper and a slip-on casual, slip-resistant work shoe design. It includes protective leather toe and heel overlays, and a sole tested to ASTM F1677-96 Mark II standards to meet or exceed a 0.5 coefficient even on wet and oily surfaces. The shoe also has an electrical hazard safe design, meeting EH Safe tested ASTM F2412-05 standards. It features a supportive, shock-absorbing FlexSole midsole and a removable memory foam cushioned insole for extreme comfort. Additionally, it has a soft fabric collar trim, a stretch top panel, and a heel pull-loop. Heel height is approximately 3 cm. Upper: Leather. Lining: Soft Fabric. Sole: Rubber.