Experience durability at its peak with the PhD® Outdoor Light Crew. Featuring Indestructawool™ technology, a patent-pending wool-based durability construction, these socks are ready for any adventure on your list. Plus, with redesigned mesh zones, a Virtually Seamless® toe and the...

A true rugged sock in a lighter weight. Dont let the "light" in the name fool you; this sock is no lightweight when it comes to comfort, durability and all the heavy-duty work you can throw at it. Our patented...

We've put all of our smarts into these new and improved Women's PhD® Run Ultra Light Micro socks. You won't break your stride, thanks to our Indestructawool™ technology designed for added durability and an Achilles tab designed to help prevent...

When you're passionate about running, sometimes you can't wait for the storm to pass to get after it. Our PhD® Run Cold Weather Mid Crew is one of our warmest running socks and will help you get outside and stay...

Featuring Light Elite cushioning, these wool running socks contain targeted cushioning placed where runners need it most, on the ball and heel of the foot. We packed these socks chock full of smart features like our 4 Degree™ elite fit...

The ultimate combination: Merino wool for cold weather insulation and the performance that comes from a perfect fit. There is no other heavyweight sock that can make this claim. If there were, we would have made it! This sock is...

Featuring Light Elite cushioning, these wool running socks contain targeted cushioning placed where runners need it most, on the ball and heel of the foot. We packed these socks chock full of smart features like our 4 Degree™ elite fit...

It’s time to take “burr” out of your running vocabulary. Stride out in our PhD® Run Cold Weather Mid Crew—one of our warmest and most comfortable running socks. They're  made with a ZQ Merino blend and include mesh zones designed...

Searching for a versatile wool sock that has it all? Look no further: the PhD® Outdoor Medium Crew offers fit, comfort and durability wrapped together in one smart sock. It features Indestructawool™ technology for ultimate durability in high wear areas,...

FITS designed the Performance Trail Quarter Sock for folks who demand serious performance from all their gear. The Performance Trail Sock cushions, protects your foot from rocks and trail debris, and promotes airflow to keep you dry and comfortable while...

The Micro Light Performance Trail looks different for a reason. The high cuff is a built-in scree-guard that helps keep out the trail while you're trail running. Below the cuff is a vented lower that increases breathability during highly aerobic...

A no-show, cushioned sock that your shoe will not eat. High-impact cushioning only where you need it - in the toe cup and the heel lock areas. This sock delivers pavement-pounding performance in every stride. Fits' patented Full Contact Fit hugs...

A low-cut, cushioned sock that your shoe will not eat. High-impact cushioning only where you need - it in the toe cup and the heel lock areas. This sock delivers pavement-pounding performance in every stride. Fits' patented Full Contact Fití«...

For those who want the lightest running sock but still want a super-fine Merino wool, the Ultra-light fits the bill. Nothing but protection between you and your running shoes. FEATURES: Patented Full Contact Fití« hugs the contours of your foot...

A work sock, a sport sock, a boot sock. Any of these descriptors will fit this rugged work horse. The 100% Merino wool is knit into a mid-weight construction of terry loops on the inside to control moisture while keeping...

All the great features of FITS' Light Hiker but in a lower profile for those that like their socks close to the top of their hikers. The FITS quarter length sock is also one of the greatest all-around socks money...

The sock that started it all! The venerable Medium Hiker. If you like a little more cushioning all around your foot but don’t want a really heavy sock, this is the sock for you. For years this sock has been...

Our most popular hiking sock style, the Light Hiker, is cushioned under foot to take the pounding of an all-day hike while managing all the moisture you can throw at it. Our patented Full Contact Fit® hugs the contours of...

Fun stripes and colors make the Jovian Stripe sock appropriate for every day of your go-go-go life. With a supportive arch brace and full cushioning. Sock Height: Crew Signature Smartwool® sock Supportive arch brace Made in USA of Imported Yarn:...

The Hike Light Crew is a great classic hiking sock for men. An arch brace helps holds the sock in place and adds additional support, while a flat-knit toe seam keeps you comfortable throughout the day. And don't forget about...

Our Women's Hike Heavy Heritage Crew is one of our most cushioned and warmest women's hiking socks. Featuring an elasticized arch brace for a secure fit and a flat knit toe seam for added comfort, these classic, durable socks are...

When your bike commute home includes a quick boulder session with a buddy, the Sulawesi Stripe is ready to go. Non-cushion in cool colors, it works with almost any shoe, and its arch brace helps support your feet all day....

A Smartwool® favorite, the Margarita takes on a south of the border flavor in its authentic festive colors. The non-cushioned crew sock can be worn year-round. Sock Height: Crew Signature Smartwool® sock Made in USA of Imported Yarn: 61% Merino Wool,...

Smartwool's classic, year-round staple is back and better than ever. The Cable II has an update, increasing the durability and adding fresh colors to suit any mood. Sock Height: Crew Signature Smartwool® sock Made in USA of Imported Yarn: 70%...

When you hit the trails in our new PhD® Run Ultra Light Low Cut socks, the socks are the only thing that should be low. Expectations and elevations should be high. Because this sock was made to help you push...

Our PhD® Hunt Heavy OTC will hike for days. Heavy cushioning and a breathable, odor-resistant Merino blend make sure the freshness lasts. Our Indestructawool™ technology ensures durability and comfort, and our 4 Degree™ elite fit system keeps the socks right...

The approach is sometimes the hardest part of the climb, but the PhD® Pro Approach Crew makes it easier with features that make every step more comfortable. With insights from Conrad Anker, it's designed for a perfect fit with added...

This ultra-light, non-cushioned hiking sock provides a close, lightweight fit that acts as your second skin to minimize friction and blisters. The flat-knit toe seam paired with our itch- and stink-free responsibly-sourced Merino wool helps guarantee comfort and confidence. Sock...

Whether you're taking a trip around the world, or just around the block, our Ethno Graphic Crew socks will get you there in style. This fresh take on traditional stripes boasts all the benefits of Merino wool, while a built-in...

Wearing the Popcorn Cable is like wearing your favorite comfy sweater on your feet. Bursting with varying texture zones and patterns, this cushioned style is one of our most comfortable socks ever. Signature Smartwool® Holiday sock Sock Height: Crew Made...

Another popular sock with the ladies at Smartwool®, the cushioned Saturnsphere keeps feet warm, dry and comfy.  Sock Height: Crew Signature Smartwool® sock Supportive arch brace Made in USA of Imported Yarn: 63% Merino Wool, 36% Nylon, 1% Elastane...