Product Description: 1. Color: Black/Yellow. 2. Packaging: Environmentally friendly plastic bag packaging, 1 pair/bag. 3. Size range: 36-50 (European sizing). 4. Wear-resistant boot sole pattern: VSV/NJV. 5. CSA Z195-02/ASTM F 2413-05 Grade 1 foot protection; penetration resistance, effectively blocking external substances; withstands up to 18 kilovolts. 6. Inner lining material: Pure cotton canvas lining for enhanced comfort. 7. Outer material: Flame-retardant coated material to block flames on the boot upper; reinforced vulcanized rubber surface with excellent waterproof performance; high-visibility black and yellow contrast design for improved visibility in low-light environments. 8. Sole/Heel: Flame-retardant properties, does not melt or burn when exposed to flames; anti-slip, oil-resistant rubber sole; excellent wear resistance; withstands 18 kilovolts in dry conditions; suitable for high-temperature environments; good thermal insulation. 9. Steel sole: Corrosion-resistant stainless steel material, puncture-proof. 10. Steel toe: Anti-rust coating, passes EN ISO 20345 impact and compression tests, reliable protection in temperature-variable environments. 11. Chemical resistance: Resists corrosive acids and alkalis. 12. Coating material: Hypalon coating with anti-corrosion properties; CE certified and meets Canadian CSA Grade 1 standards. Lakeland European Standard 9687L Fire Boot Agent Specifications: Model: 9687L, Size: 36-50, Color: Yellow, Specification: 2 pairs/box, Packaging dimensions: 40*27*47cm. Lakeland European Standard 9687L Fire Boot Agent. Fire boots are designed for firefighters' daily training and firefighting operations to protect their feet and lower legs from harm. Features include heat insulation, resistance to acids, alkalis, and chemicals. Metal components protect toes and soles against impact and puncture injuries.