hks schoen alfa 1 ntp geperforeerd laag s1p esd zwart blauw Size Footwear:39 and the shoe is compatible Size workwear:60 and the shoe is compatible with orthopedic insoles for a customized fit terwijl ze metaalvrij blijven voor compatibiliteit met detectievrije zones Its ESD (Electrostatic Discharge) protection makes it suitable for environments sensitive to static electricity Perforated upper for enhanced breathability and ventilation