Ready for the long haul, these premium mid weight work socks are built in the USA (American made), that features a fully cushioned footbed for support and comfort on the job, and a seamless toe flex zone to avoid bunching. Made with durable, Merino wool, Nylon, Polyester, and featuring Impact cushioning in key areas, the Pittsburgh Medium Weight Breathable Crew mid calf athletic work socks for Men are built off KEEN's traditional wider footwear form. KEEN Utility products use a natural technology for breaking down odor in sweat (in applicable styles); while also sourcing leather from tanneries certified by the Leather Working Group (LWG) which is the gold-standard for responsibly sourced leather. KEEN Utility believes in creating work boots that make work and life better. To further support that mission, KEEN Utility has been “Putting Good to Work” through its non-profit partnerships within the Project Build program. From helping put veterans back on their feet to supporting conservation corps work across the country, KEEN Utility puts good to work, first.