Microfibre, Suitable for laundry contracts as the footwear is prepared for HF-chip insertion.; Washable at 40°C, which prevents the spread of bacteria and ensures a high level of hygiene.; Ventilating and breathable microfiber lining, which provides a comfortable climate for the feet.; Slip resistant, durable sole (SRC-certified).; The weight of the footwear is among the lowest on the market.; The sole is oil and petrol resistant.; ESD Approved.