100% non-metallic, with protective toecap, midsole and internal metatarsal guard, Lava is highly robust and developed with specialist durability materials including FORCE10 components, a Moisture-tech by Sympatex waterproof membrane, Impact Shield and Boa fit system.Upper Materials: Water repellent full grain black leather and Boa fit systemProtective Components: Protective fibreglass toecap and composite anti-penetration flexi-midsoleInternal Linings: Moisture-tech by Sympatex waterproof and breathable bootie membrane - tested for 100 hours (74 times longer than EN requirement)Outsole: FORCE10 scuff cap and solid nitrile rubber outsole - tested to extraordinary abrasion, heat and cold performance levelsFootbed: Ortholite climate breathable footbed with IMPACT SHIELD shock reducing internal digging plateSafety Specification: EN ISO 20345:2011 S3 HI HRO WR M SRCAvailable Size Range: UK 6-12