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Paying homage to a classic fly-fishing technique, the Spey Fly sock takes its name from Scotland’s River Spey and inspiration from our own fly-fishing guru and Mill patriarch, Marc Cabot. He’s the real deal. This lightweight lifestyle sock is too. It features terry loops knit under foot for cozy cushioning and our signature Merino Wool durable construction. While you may never reel in stream dolphins like Marc does, you can sport the same socks.

Running is twice as fun with a partner. But not everything is shareable – like these ultra-lightweight running socks. They’re for your feet only.

Being a weekend warrior never felt so good. When you’ve got a bundle of full cushion socks engineered to stand up to the toughest work conditions, you can rest easy knowing a fresh pair is ready and waiting for when you punch out on Friday.

If you’re a thru-hiker that’s miles away from town, you need bombproof socks that never rip or run cold. Built to outperform and over-deliver when the trails get tough, our Hiker Boot socks with Full Cushion are every woman’s secret weapon. One you’ll always wield, too.

Your choice for hot weather and high humidity climates, though equally ideal for everyday temperate wear. Light cushion on bottom of foot and around the calf, mesh panels on top of foot and leg for enhanced breathability. Elastic arch support for foot-hugging-fit. Reinforced toe and heel for increased durability.

Lightweight tactical sock appropriate with 6” boots. Thin jersey knit throughout. Low bulk flat ribbing around the leg. Elastic support at arch. Reinforced heel and toe for increased durability.

In honor of the Civilian Conservation Corps youth who helped shape our modern National Park System, we made the Northwoods hiking sock to work hard. But hard labor is no match for their soft, snug fit. Sure, they'll crush trails like a pound of dynamite, but with details like breathable cushioning and low-profile, slouch-free 1x1 ribbing, the only grunt you'll make is when the wildlife tries to steal these socks.

This could just be your kid’s favorite sock. Which is great, because the Merino Wool knit is meant to last for … well, life. This kids’ hike sock runs a light profile and has a little extra cushion running above the achilles for all-day comfort. At some point you might as well overlook that they’re outside without shoes on.

There’s nothing standard about a Merino Wool sock that’s Guaranteed for Life—but here goes nothing. Featuring a high-density stitch count, The Standard Crew is built to breathe and hold its fit from the boardroom to the dance floor. How’s that for a Lightweight?

Lightweight tactical sock appropriate with 6” boots. Thin jersey knit throughout. Low bulk flat ribbing around the leg. Elastic support at arch. Reinforced heel and toe for increased durability.

Nothing comes between you and the trail thanks to the secure cuff and blister-free fit of this zero-cushion ¼ sock. Not even that pesky pebble that wants to wedge itself between you and your sanity. And when the trail turns to a scramble, the smooth, moisture-wicking Merino Wool will hold fast by your side.

Inspired by vintage ski resort posters (you know the ones), the Solstice Over-the-Calf winter sock delivers a lightweight precision fit with breathability for a bunch-free ski boot experience. Bolstered by increased durability, these socks shine whether you're logging 10 days or 100 days like it's a job — and feel free to leave them on when you get home.

Take on everything from single track to jeep road crushers in the smooth, Ultra-Lightweight fit of our Men’s Quarter running sock. Redesigned with breathable flex zones, this Merino Wool workhorse adds ankle coverage and next-to-skin ribbing that zaps fatigue like lightning.

The ultimate companion for hot summer hikes. Coolmax® moves moisture away from your skin and dries fast while legendary Darn Tough construction brings comfort, durability and fit to the trail.

A Vermont-inspired trio of lightweight hiking socks to make your friends jealous. Because that’s what our socks do best.