Heavy and light industrial welted work boot designed for the everyday workplace. This boot is both rugged and supremely comfortable, and is extremely flexible due to the unique Techni Flex Welted outsole. ENISO 20345-1 SB HRO, ORO. Oiled full grain leather Upper. Moisture wicking textile lining. T742 rubber Outsole. 200 joule steel Toe Cap. PolyouÂ® moisture wicking removable. Welted-Techniflex-strength of welted with flex of athletic footwear. Anti-Slip; Oil & Acid resistant; Chemical & Solvent Resistant; Heat Resistance to 300Â°C. Sizes 6-12.