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 300C. This boot also incorporates an anti-scuff toe guard. Safety Rating: S3-WR-HROSlip Rating: SRC. The upper is made from Brown Nubuck leather and features a padded collar for added comfort. The boot is 100% non-metallic, waterproof and breathable.