The 561 is our toughest boot, designed with a higher cut for added coverage and manufactured with a full leather upper. This boot can withstand temperatures up to 300°C, thanks to the mighty Vibram sole. 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. Perfect for boiler makers, miners, grinders, road workers or anyone who needs protection from the heat.