Tough as steel but incredibly comfortable. The Steely feels as good at the end of the day as they do when you first put them on. High density cushioning strategically placed on the foot base and shin make for a supportive feel that people on their feet all day love. This model also has a full cushioned toe box for added comfort. Fine gauge Merino wool keeps them cool in the summer and warm in the winter. True Seamless construction makes them irresistibly comfortable. Plus they're anti-microbial and breathable so you can wear them more than once to work and no one will be the wiser. Still made in Vermont. Guaranteed for life.