Long lasting safety and comfort combine in the SKECHERS Work Relaxed Fit®: Doyline ST shoe. Nubuck leather, synthetic and mesh fabric upper in a lace up casual comfort steel toe slip resistant work sneaker with Memory Foam insole. Steel safety toe front. Steel toe rated ASTM F2412-2011 I/75 C/75 protection. Slip Resistant nitrile rubber outsole. Sole tested ASTM F1677-05 Mark II to meet or exceed a .45 coefficient even on wet and oily surfaces.