Socks for Life.  The Darn Tough Flying Number 2 Sock is built for those who demand performance, comfort, and durability in every step (with a little good-natured humor). Whether you're crushing miles on the trail or powering through your daily routine, this lightweight yet tough sock delivers unbeatable breathability and blister-free comfort. Made with moisture-wicking, odor-resistant merino wool, it keeps your feet dry and fresh no matter the adventure. With Darn Tough’s legendary durability and lifetime guarantee, seven socks gets you socks for life.  Plus, they're made in the US in Vermont.