Viking Footwear Firefighter Chainsaw Waterproof FR Boot 100% Rubber Importado Heel measures approximately 1.25" Platform measures approximately 0.5" Extra comfort non-woven para/meta aramid FR lining excellent flame resistant property 16" tall Snug-fit design and ergonomic insole, plus the optional felt insole to adjust fit Highly chemical resistant and flame retardant rubber upper Reinforced backstay for heel tendon protection. Metatarsal, shin impact, and chainsaw protection through multiple layers of polyaramide, and rubber. Shaft is also lined with polyaramide for protection. Ankle padding protection and foam midleg padding for additional support Ideal for Regular and Auxillary Firefighters, Forest fire workers, Motor vehicle accidents around dangerous flammable liquids