Hiking & Backpacking

With classic styling, ample cushioning, and a supportive fit, our Jitterbug Crew has impressive range. Whether you’re at the office, walking a riverbank, or out on the dance floor, give your feet the youthful, nostalgic glow they deserve.

With classic styling, ample cushioning, and a supportive fit, our Jitterbug Crew has impressive range. Whether you’re at the office, walking a riverbank, or out on the dance floor, give your feet the youthful, nostalgic glow they deserve.

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 Hike Light Elite Burgee Crew helps provide you with durable comfort for all of your current and future hiking adventures. Get one of our best hiking socks to help prevent blisters and get after it.

Our Hike Light Hiker Street Crew combines an elasticized arch brace for a secure fit, a flat knit toe seam for added comfort, and cushioning on the bottom of the sock only with our soft, responsibly sourced Merino wool to bring you your new go-to fall, spring, and summer hiking socks. Gear up and go far.

The Hike Light Striped Crew offers the same secure fit and comfort level as the original, but with a salute to stripes. This men's hiking sock brings you the durability you need for long hikes paired with the benefits of responsibly-sourced Merino wool—helping regulate body temperature while staying itch- and stink-free.

The Hike Light Striped Crew offers the same secure fit and comfort level as the original, but with a salute to stripes. This men's hiking sock brings you the durability you need for long hikes paired with the benefits of responsibly-sourced Merino wool—helping regulate body temperature while staying itch- and stink-free.

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

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. A flat-knit toe seam keeps you comfortable.

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. A flat-knit toe seam keeps you comfortable.

Perfect for getting out past cell service, our Striped Hike Medium Crew socks add some personality to our classic hiking sock. The comfort of responsibly-sourced Merino wool helps keep your feet looking great and feeling even better as you get out there.

Perfect for getting out past cell service, our Striped Hike Medium Crew socks add some personality to our classic hiking sock. The comfort of responsibly-sourced Merino wool helps keep your feet looking great and feeling even better as you get out there.

Get a pair of our most durable, best-fitting mountaineering socks for your next adventure. An arch brace holds the sock in place and extra-heavy cushioning will help keep your feet warm and dry when you're mountaineering or multi-day backpacking. And with the itch- and stink-free benefits of ZQ Certified Merino wool, your partners in pursuit will thank you.

Venture farther and stay warmer with the PhD® Outdoor Heavy Crew. Heavy cushioning and the power of itch- and stink-free ZQ-Certified Merino wool help keep your feet warm, dry, and comfortable whether you’re out on a multi-day trek or trudging through the snow. Featuring Indestructawool™ technology for ultimate durability in high wear areas, the 4 Degree™ elite fit system for a dialed fit, and our signature Virtually Seamless™ toe for extraordinary comfort in any trail shoe, this heavy-duty, technical outdoor sock can handle anything you can. And more.

Venture farther and stay warmer with the PhD® Outdoor Heavy Crew. Heavy cushioning and the power of itch- and stink-free ZQ-Certified Merino wool help keep your feet warm, dry, and comfortable whether you’re out on a multi-day trek or trudging through the snow. Featuring Indestructawool™ technology for ultimate durability in high wear areas, the 4 Degree™ elite fit system for a dialed fit, and our signature Virtually Seamless™ toe for extraordinary comfort in any trail shoe, this heavy-duty, technical outdoor sock can handle anything you can. And more.

Venture farther and stay warmer with the PhD® Outdoor Heavy Crew. Heavy cushioning and the power of itch- and stink-free ZQ-Certified Merino wool help keep your feet warm, dry, and comfortable whether you’re out on a multi-day trek or trudging through the snow. Featuring Indestructawool™ technology for ultimate durability in high wear areas, the 4 Degree™ elite fit system for a dialed fit, and our signature Virtually Seamless™ toe for extraordinary comfort in any trail shoe, this heavy-duty, technical outdoor sock can handle anything you can. And more.

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 4 Degree™ elite fit system, these responsibly sourced Merino wool socks have comfort covered.

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 4 Degree™ elite fit system, these responsibly sourced Merino wool socks have comfort covered.

An ankle-high powerhouse, the PhD® Outdoor Light Micro is made for mileage. Great for long summer treks, our lightweight, best-fitting hiking sock combines support, stretch, and recovery. Featuring Indestructawool™ technology for ultimate durability and the 4 Degree® elite fit system for a dialed fit. Light cushioning offers impact protection on the road or trail, while the Virtually Seamless™ toe offers more comfort in a trail shoe.

It's time to move new mountains. And there's no better sock to do it in than the PhD® Outdoor Light Pattern Crew. Featuring a colorful, geometric print, this design hints to where you should be when you wear them—the great outdoors. This pair of hiking socks is durable, breathable, and one of our most comfortable. Now, that's a triple threat.

It's time to move new mountains. And there's no better sock to do it in than the PhD® Outdoor Light Pattern Crew. Featuring a colorful, geometric print, this design hints to where you should be when you wear them—the great outdoors. This pair of hiking socks is durable, breathable, and one of our most comfortable. Now, that's a triple threat.

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, our 4 Degree™ elite fit system for a dialed fit, and our signature Virtually Seamless™ toe for extraordinary comfort in any trail shoe. Plus, the medium cushioning provides impact protection and ultimate comfort on the trail—making our PhD® Outdoor socks some of our best-fitting and most comfortable.

For the vertically inclined, the PhD® Pro Approach Mini combines carefully designed comforts with rugged purpose. Made with insights from iconic alpinist Conrad Anker, our approach socks feature specified cushioning to help protect feet from footwear friction, our 4 Degree™ elite fit with flex zone, ankle padding that provides additional cushioning against loose rock and scree, and body-mapped mesh to help make even the most ambitious approaches more manageable.

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™ technology, a 4 Degree™ elite fit system, and body mapped mesh vents for breathability. So you can escape without distractions and feel supported wherever your feet take you. Get out there and explore.

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 4 Degree® elite fit system, these socks have comfort covered.

A favorite of through-hikers and day-trippers alike, the PhD® Outdoor Light packs some serious trail power. Featuring a versatile, multi-sport design, this lightweight style includes Indestructawool™ technology for ultimate durability in high wear areas. And when it comes to comfort, Smartwool pulled out all the stops: the 4 Degree™ elite fit system provides a dialed fit and our signature Virtually Seamless™ toe offers extraordinary comfort in any trail shoe. The Mid Crew height sits at an ideal height for a low trail boot.

For a sock that has it all, look no further: the PhD® Outdoor Medium Crew offers fit, comfort and durability wrapped together in one smart sock. Featuring Indestructawool™ technology for ultimate durability in high wear areas, the 4 Degree® elite fit system for a dialed fit and our signature Virtually Seamless™ toe for extraordinary comfort in any trail shoe. Medium cushioning provides impact protection and ultimate comfort on the 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 companion. With the new Shred Shield™ technology for reduced wear from toes, 4 Degree™ elite fit system for a more dialed-in fit, and activity-specific mesh zones for additional breathability, this sock was built for mile after mile of 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 companion. With the new Shred Shield™ technology for reduced wear from toes, 4 Degree™ elite fit system for a more dialed-in fit, and activity-specific mesh zones for additional breathability, this sock was built for mile after mile of 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 Mini is the perfect trail companion. With the new Shred Shield™ technology for reduced wear from toes, 4 Degree™ elite fit system for a more dialed-in fit, and activity-specific mesh zones for additional breathability, this sock was built for mile after mile of trail.

When you're out there, the last thing you want to think about is your feet. That's why we made the PhD® Pro Light Crew with Indestructawool™ technology, a 4 Degree™ elite fit system, and body mapped mesh vents for breathability. So you can escape without distractions and feel supported wherever your feet take you. Get out there and explore.