Red Wing/Irish Setter Mens Work Boots. UltraDry and Waterproof. Oiled leather uppers, rugged slip/oil resistant tread bottom. Boots are in very good condition with 2 dig marks on right boot and mark on left boot. Size 11.5 US, 45 EUR. Boots are quite heavy. Details about boot as indicated on boot tongue. Line 1 – “ASTM F2413” corresponds to the ASTM standards for safety toe footwear (works or boots with toe caps). Meanwhile, the number “11” after the dash signifies the year (in this case, the year 2011) when the standards were set in place or the year when they were last revised. Line 2 – The letter “F” signifies that the footwear is designed for female use (M for males). “I/75” means that the toe cap delivers impact resistance of up to 75 pounds, and “C/75” pertains to the toe cap’s ability to resist compression up to 2,500 pounds. Line 3 – This line includes any other protective qualities that the footwear offers. In the example, “EH” refers to an electrical hazard-safe design, while “PR” signifies that the boots or shoes have puncture-resistant soles.