Red Wing #4436 Pecos Men。Red Wing 8.5D brown leather steel toe work boots with secure lace-up closure. Padded black collar for added comfort. ASTM F 2413-11 Red Wing boots bearing the ASTM F2413-11 standard feature industrial safety toes (Impact (I/75), Compression (C/75) and an Electrical Hazard (EH) rating. Key Features of the F2413-11 Standard Impact Resistance (I/75): The toe can withstand a 75 foot-pound impact. Compression Resistance (C/75): The toe withstands 2,500 pounds of compressive force. Electrical Hazard (EH): Offers a protective sole/heel designed to insulate. You can read online more about the specific ratings. #steeltoe #Red Wing