Comfort and smart safety come in the SKECHERS Work: Caviar - Three SR shoe. Smooth leather upper in a slip on dress casual work slip resistant loafer with stitching and overlay accents. Soft fabric shoe lining. Cushioned comfort insole. Shock absorbing supportive midsole. OSHA compliant nitrile rubber slip resistant outsoleElectrical Hazard (EH) Safe design. EH Safe tested ASTM F2413-05. Slip Resistant nitrile rubber outsole. Sole tested with ASTM F1677-96 Mark II standards to meet or exceed a .5 coefficient even on wet and oily surfaces.