The 561 is our toughest boot, designed with a higher cut for added coverage and manufactured with a full leather upper. Bearing the mighty Vibram® sole, this boot can withstand temperatures up to 300°C. The exterior may be fortified but look no further for comfort as the interior of the boot includes the OrthoTec Poron® footbed which enhances comfort with its shock absorbing properties and anatomical arch support. This boot is a confident choice for boiler makers, miners, grinders, road workers or anyone who needs protection from the heat. Features: 200J Steel cap toe Heat, oil & acid resistant vibram XS work outsole Moulded PU scuff cap for longevity YKK zipper with full length ZipGuard SRC slip resistant Silicone AbrasionGuard AirZone comfort system OrthoTec PU footbed with anatomical arch support Dri-Freeze® linging that dissipates heat Coats NylBond stitching Padded tongue and collar Mongrel Stone Hi Leg Rubber Zip Side Safety Boot