The DEWALT Millington Rigger Boots are completely non-metallic They have a waterproof breathable inner lining that helps to eliminate water ingress A penetration resistant midsole and composite toecap provide protection up to 200 joules The outsole is manufactured using a dual density formula of PU and rubber giving heat resistance to 300°C This boot also incorporates an anti-scuff toe guard Safety Rating S3-WR-HRO Slip Rating SRC