Baffin Miner CSA-Approved 16 inch Steel Toe Internal Met Guard Puncture-Resistant Waterproof Insulated Work Boot

16 Inches in height 19-inch calf circumference Acid- and oil-resistant rubber outsole ASTM 2913 Slip Resistant ASTM F2413 electrical hazard standard ASTM F2413 metatarsal guard standards ASTM F2413 protective toe classification ASTM F2413 puncture resistant standards CSA Green Triangle meets CSA standards for Grade 1 protective toe and has a protective plate between the outsole and midsole for puncture resistance CSA Omega Rectangle meets CSA standards for electric shock resistance Manufacturer comfort rated to -40°F Shaft height and circumference may vary by size Steel shank Waterproof closed cell neoprene and B-Tek insulated sock Weight: 10.4 pounds per pair for a size 10