Polyurethane boots, that contains millions of tiny air bubbles, making the boots lightweight and giving excellent thermal insulation. Product Details UPPER: Anatomic Polyurethane upper OUTSOLE: Easy cleaning Polyurethane outsole, dust-proof LINING: Anti-bacterial sock FOOTBED: Removable insole made with an antistatic foam with extra grip printing Good sweat managing for extra comfort SPECIAL: Insulation -50°C -58°F SAFETY: Steel toecap and midsole CERTIFICATION: EN ISO 20345:2011 S5 CI SRC Self Cleaning Outsole Slip Resistance SRC Certifications EN ISO 20345:2011 HI HI Materials and Fabric PU We deliver Nora Noratherm S5 Full Polyurethane Thermo Work Boots worldwide.We specialise in shipping almost anywhere in the world securely at competitive prices - across UK, US, Canada, Ireland, New Zealand, Europe - securely and fast at competitive prices