Composite Toe: Left And Right Asymmetrical, Non-Metallic Carbon Toes, A Composite Material, Offer An Unobtrusive Fit And Are 15% Lighter Than Steel; The Targhee 4 Work Shoes For Men Meet Or Exceed Astm F3445 And F2413 M I/75 And C/75 Standards American Built: Assembled With Pride In Portland, Oregon, With A Minimal-Waste Design Using The Finest Materials From Around The World; We’Re Proud To Bring Footwear Manufacturing Back To The Usa, And To Do It All In One Of America’S Most Modern Factories Waterproof: Keen.Dry Is A Waterproof, Breathable Membrane Liner, Keeping Your Feet Dry And Comfortable; Full-Grain Barnyard Resistant Waterproof Leather Helps Resist The Damaging Effects Of Oleic Acid, Urea, Sodium Chloride, And Ammonium Hydroxide Materials: Keen.Fusion Construction Fuses The Upper To The Sole For A Longer-Lasting Bond Without Solvents; Heat-Resistant, Oil- And Slip-Resistant Outsole Is Lighter Weight And More Durable Than Rubber While Being Rated Up To 572°F/300°C Traction: Oil- And Slip-Resistant, Non-Marking, Rubber Outsoles That Meet Or Exceed Astm F1677 Mark Ii Non-Slip, And Astm Satra Tm31 Material Abrasion Testing Standards; Midsole Meets Astm D471-06 903# Oil And Isooctane Chemical Resistance Standards