Smartwool

We teamed up with Smartwool athlete and ultrarunner Rob Krar to make a sock that can handle the longest trail runs. Introducing our PhD® Pro Endura...

A no-nonsense ribbed sock with built-in, cushioned comfort and a touch more cushioning than our Classic Rib.61% Merino Wool, 37% Nylon, 2% Elastane

Meet the one sock you'll need all winter. These rugged socks give a nod to classic ragg wool but offer the comfort and benefits of modern Merino. S...

Over 25 years ago, we invented the original Merino wool performance sock-the Classic Hike. The Classic Hike remains mostly unchanged and certainly ...

Our Hike Full Cushion Crew socks, formerly PhD Outdoor, use cushioning on the entire sock to help maximize warmth and protection. These responsibly...

An arch brace holds the sock in place and adds additional support, while a flat-knit toe seam keeps you comfortable throughout the day. Perfect for...

Perfect fit. Powerful durability. That's what you get when you put on our Hike Light socks-formerly known as PhD Outdoor. Featuring our top sock te...

Do what feels natural in our new Hike Light Crew. Formerly known as PhD Outdoor, we've added enhanced features to our responsibly sourced, ZQ-certi...

Featuring an elasticized arch brace for a secure fit, a flat knit toe seam for added comfort, and targeted cushioning around the toes and heel, our...

Enjoy a great pattern and even greater comfort with our Hike Light Fish Pattern Crew socks. These Merino wool hiking socks use our light cushioning...

This ultra-light, non-cushioned sock provides a close, lightweight fit that acts as your second skin to minimize friction and blisters. The flat kn...

This all-purpose sock was designed for rugged day hikes or moderate backpacking. An arch brace holds the sock in place and adds additional support....

We added some height to our Hunt Medium Crew so they'd fit just right, even in your tall boots. The arch and ankle support system means these socks...

If your kiddos love to adventure as much as you do, get them geared up with our Kids' Hike Light Park Explorer Pattern Crew socks. These Merino woo...

Slip in to the ultimate in hidden comfort! Our Stripe Hide and Seek No Show feature premium construction, ultra luxurious hand feel and an interna...

It's easy to bring your kiddos on all of your favorite hikes when they have the right gear. Our Kids' Hike Light Mini offers comfort and that just ...

Looks like a shirt. Performs like a jacket. Don't let the fun plaid pattern and snap closures make you think this is a stay-inside shirt. Our Ancho...

We've updated the fit of our Men's Merino 250 Base Layer 1/4 Zip to improve functionality while also enhancing aesthetics. As one of our heaviest b...

We've updated our Men's Merino 250 Base Layer Bottom to bring you a better fitting, more functional tight. The technical benefits of 100% Merino wo...

Meet the better-than-ever Men's Merino 250 Base Layer Crew. We've updated this 100% Merino wool fan-favorite with new colors and a new fit to impro...

For the day hiker looking for a little more coverage, this sock adds a small amount of cushion. An open, mesh fabric and two types of rib offer enh...

Our Men's Merino 150 Boxer Shorts takes all of the tech you love from our boxer briefs-lightweight, breathable, anti-stink Merin - and adds a loose...

Whoever said you can't find fashion and function in a pair of shorts clearly never tried on our Men's Merino Sport 10" Shorts. These shorts feature...

For a tee that looks as comfortable as it feels, look no farther than our Men's Merino Sport 150 Midnight Snooze Short Sleeve Graphic Tee. With res...

Our Merino Sport 150 Tee is designed to help keep you comfortable while you're active. It features the sweat management, temperature regulation, an...

We're at our happiest at higher elevations. And our Men's Merino Sport 150 Rocky Range Graphic Tee is made to take you there (and wherever else you...

Experience durability at its peak with the PhD Outdoor Light Crew. Featuring Indestructawool technology, a patent-pending wool-based durability con...

A favorite of through-hikers and day-trippers alike, the PhD Outdoor Light packs some serious trail power. Featuring a versatile, multi-sport desig...

The Merino 150 Glove brings our mid-weight Merino blend fabric to your hands. Essential for keeping the chill at bay. Built so your thumb and index...

Our Merino Plant-Based Dye Neck Gaiter is made of a blend of responsibly sourced Merino wool with nylon, so it's super soft, lightweight, odor-resi...

For those times when you want to keep sweat out of your eyes but don't need sun protection, the Merino Sport Ultralite Headband is a game-changer. ...

Venture further and stay warmer with the PhD Outdoor Heavy Crew. Heavy cushioning and the power of Merino help keep your feet warm, dry and comfort...

An ankle-high powerhouse, the PhD Outdoor Light Mini is made for mileage. Great for long summer treks, it combines support, stretch, and recovery. ...

When you 've got lots of miles to cover but only want the minimum between your foot and boot, the PhD Outdoor Ultra Light Crew is the perfect trail...

When you 've got lots of miles to cover but only want the minimum between your foot and boot, the PhD Outdoor Ultra Light Crew is the perfect trail...

For the vertically inclined, the PhD Pro Approach Crew combines carefully designed comforts with rugged purpose. Made with insights from iconic alp...

When you're out there, the last thing you want to think about is your feet. That's why we made the PhD Pro Medium Crew with Indestructawool‚Äö√Ñ√∂‚...

When it comes to running socks, we pull out all the stops to keep making improvements on our products. With brand new Shred Shield technology to he...

It's time to take "burr" out of your running vocabulary. Stride out in our PhD Run Cold Weather Mid Crew. A Merino blend and mesh zones designed fo...

Be sure to start your next run with footwear that offers as much comfort as possible. Our Run Targeted Cushion Ankle Socks are designed with cushio...

Our best fitting, most advanced run socks yet, we packed years of testing, prototypes and running smarts into these socks. Featuring Light Elite cu...

When it comes to running socks, we pull out all the stops to keep making improvements on our products. With brand-new Shred Shield technology to he...