Viking Footwear Non-Safety Insulated Boot 100% Rubber Importado Heel measures approximately 1.5" Superior resistance to chemical acids, and organic compounds (ie: Sugar & agro-farm chemical). Designed to be resistant to: animal fats, fish oils, Ketone, paint solvents, fuel oil mix, oil, and grease NR blended NBR upper with neoprene lining Self-cleaning, flexible, non-slip chevron NBR sole with smooth non-net catching design. Ergonomic SNUG-FIT last design: ankle fitted for excellent support and comfort Comfortable ergonomic insole (removable). Steel shank for stability. Ultra flexible: Exceeds 305,000 Flex Rating Ideal for Commercial fishing, Seafood processing, Food Processing, Agriculture, Cultivation