This premium black full grain anti cracking waxy smooth leather boot has been specifically designed for extreme cold conditions up to -40Â°C. It has been manufactured to exceed EN ISO 20345:2011 S3 HI CI-40Â°C HRO SRC. This boot has 100% non metallic construction with a protective fibreglass toecap and composite anti-penetration flexi-midsole. The scuff cap has been designed to revent wear and tear on the boot. Its features include having anti-static properties insulation against the cold has a heat resistant outsole up to 300Â°C HI resistant outsole up to 150Â°C oil resistant and a water repellent upper. These features make these boots the perfect choice for extreme cold working enviornments.