Socks Addict is obsessed with bringing you the best gosh-darned socks on the planet. So, naturally, we stock Darn Tough. Designed, tested and manufactured in Vermont, Darn Tough makes premium, all weather performance socks so sturdy they come with an unconditional lifetime guarantee. Ski, snowboard, hike, run, bike and work in Darn Tough socks – the most comfortable, durable and best fitting socks you’ll ever own!