Amazon.com | Viking Men。Snug, highly flexible 14” boots provide superior heel and ankle support to reduce incidences of ankle rollover and superior arch support to reduce fatigue Felt-lined tubber uppers are flame retardant and chemical resistant Felt-lined vamps and legs provide comfort and thermal insulation Reinforced backstays protect your heels and tendons Orthotic insoles are ergonomically designed Steel midsoles provide excellent penetration resistance Rubber lug outsoles are abrasion, oil, chemical, slip, and heat resistant CSA Z195-14 / ASTM F2413-11 Grade 1 steel toes and plates protect your toes from impact-related hazards Safety reflective patch on the side of each boot enhances your visibility in low-light conditions Heavy duty rubber pull straps enable easy donning and doffing of the boots Ice studs can be attached to the boots for added traction in winter weather CSA Omega certified boots are resistant to electric shocks up to 18kV Boots are certified to NFPA 1971-2013 Edition Boots are ideal for regular and auxiliary firefighters, forest fire workers, and general fire rescues