The Alternate Stitch

Merino Wool, Nylon, and Spandex are the only yarns we knit into our socks. A pure Merino sock would not have the elasticity to hold its fit, and Nylon strengthens wear zones. The list is simple, but it’s how we do it 
that knits a longer lasting sock.

When you take an unexpected spill at the water station... Darn It. Good thing our socks keep your feet dry even after they get wet. Darn Tough running socks — made for runners' highs and lows. Running is tough. Our run socks are tougher. 

It’s people like Kate who remind us why we have the best customers on the planet. And while you might not have her artistic chops, just know there's plenty of room on our fridge for your note.

From climbing poles to digging holes, lineman are outside on their feet all day in all elements. Montana power lineman Dustin shares the rigors of lineman work and the importance of having gear you can depend on, especially footwear. 

Life is tough. Our socks are tougher. Our guarantee has you covered for everything from dog disasters to campfire catastrophes. In 2004, our founder Ric Cabot took a risk to save the family business. Confident that what we knit was more durable and longer lasting, we promised that our socks would last forever. 

Inspired by our own barrier breaking athlete Mirna Valerio, the colorful Mirnavated Ultralight Run sock – sales from which support the non-profit Come Alive Outside – redefines what it means to give back. Learn more about our partnership with Mirna Valerio.

You’ve probably heard that Merino Wool keeps you warm when it’s cold, but did you know it also keeps you cool when it’s hot? It’s not magic that it can do both… it’s thermoregulation. Here are 5 reasons to wear Merino Wool in the summer, in video form.

Ultra-runner, public speaker, mother, force of nature – Mirna Valerio inspires us. If you haven’t heard her story, check it out. We're honored to partner with her and are excited to introduce you to the sock she helped us design: The Mirnavated.

Cushioned socks have Terry loops underfoot (and often other areas too) to add comfort, durability, and padding. Whether it's for comfort or protection, we have a variety of cushion levels to choose from based on your preferences and footwear. Not sure if you want cushion or what kind of cushioned sock to get? 

Together, we all win. And together, we’re creating something that people are passionate about. We don’t have a great story; we are a great story. It’s more than just about knitting socks or making a living. The responsibility of Darn Tough stretches across multiple disciplines.

Our socks are unconditionally guaranteed for life. We will replace them if they’re not the best fitting, longest lasting socks you own because we stand behind our product. Our online warranty process is easy... 6 steps. No receipt of purchase required, just one pair of Darn Tough socks.

We made our first Space Dye sock in 2022, and you all loved that Space Gray so much, we couldn't stop there. So, we knit up Cosmic Purple. If you're fan of purple socks with a heather look, we think you'll like this. Did we mention, each and every Space Dye sock is unique?

At Darn Tough, we knit our socks in 4 different weights: Ultra-lightweight, Lightweight, Midweight, and Heavyweight. When it comes to picking a sock weight, consider your planned activity, local weather, and personal preferences. We put together a guide of our different sock weight options for all of your favorite activities.

Athletes Trevor Kennison and Barry Corbet never knew each other, but they inspired a movement. From overcoming injury to paving the way for adaptive athletes, Level 1’s documentary Full Circle chronicles their unlikely journey – 
50 years in the making.

When your dog decides they're entitled to shred your socks... Darn It. Turns out, it's not just Autumn. Dogs love Darn Tough socks. But if that love turns destructive, the good news is we cover that. 

Growing up in Alaska, the Salmon Sisters were raised tough. They first earned their stripes fishing for wild seafood in the remote Aleutian Islands (where they grew up). Their feet are in rubber boots on the water for up to 18 hours a day, a unique challenge when it comes to designing socks. 

Not sure if your socks fit? We've put together some tips and tricks to help you check. At Darn Tough, we knit all our socks with a performance fit so they act like a second skin, preventing slippage and blisters. If your socks aren't the most comfortable, durable, best fitting socks, you can return them for another pair. 

The holidays mark a time for great cheer,

When not all goes to plan (DARN IT), you have 
nothing to fear,


We’re there with you through breaks and bobbles,


What matters most is when friendship won’t wobble.



If you're wondering how to pack for a thru hike, we've got you covered. Darn Tough employee Ryan Shamy, trail name Buzz, has thru-hiked the Appalachian Trail and Vermont's Long Trail. Ryan walked us through his thru hiking gear list and turned it into a downloadable checklist you can print and follow along. Happy hiking! 

The only thing cozier than relaxing by a crackling fireplace on a cold Vermont night? Doing it in Darn Tough socks. This holiday season, you can enjoy the fireplace sounds and familiar sights of our virtual yule log and favorite Merino Wool socks.