Flame Retardant full grain black leather stitched with Coats® FR thread Protective fibreglass toecap, composite anti-penetration flexi-midsole and internal metatarsal guard Moisture wicking breathable mesh fabric lining Dual density nitrile rubber outsole - tested to extraordinary abrasion, heat and cold performance levels Ortholite® climate breathable footbed RF8000 Helios High Leg Internal Metatarsal Foundry Safety Boot