Darn Tough knows that hard working guys deserve a tough sock. These Darn Tough socks are very comfortable with seamless construction to provide a performance fit that eliminates slipping, bunching, and blisters. The socks also feature Micron Merino Wool which is very comfortable while being breathable and fast drying. On top of that it is an antimicrobial so it repels bacteria and odor. All Darn Tough socks are made in Vermont and guaranteed for life.