Red Wing SuperSole Steel Toe Work Boots ANSI Z41 PT91 M1/75 。Vintage-era Red Wing men’s steel toe work boots featuring the older ANSI Z41 PT91 safety standard with MI/75 C/75 impact and compression ratings. These boots are well-made, heavy-duty, and no longer produced under this standard, making them desirable for both heritage workwear and everyday rugged wear. Details: • Brand: Red Wing • Safety Rating: ANSI Z41 PT91 • Impact/Compression: MI/75 C/75 • Steel Toe • Lace-up work boot • Made to older safety specifications Condition: Like new, never worn. Great for collectors, workwear enthusiasts, or anyone who appreciates classic Red Wing craftsmanship.