Thermal Socks | Warm Socks

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

Our Classic Hike Extra Cushion Crew sock features a dense cushion for adventurers who need more padding in their favorite hiking shoe or boot. This...

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

Our Classic Hike Extra Cushion Crew sock features a dense cushion for adventurers who need more padding in their favorite hiking shoe or boot. This...

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 cu...

Step up your everyday sock game with our Everyday Solid Rib Crew Socks. These Merino crew socks feature a "stay put" fit, enhanced durability, and ...

Our Classic Hike Full Cushion Crew socks focus on comfort and durability, so you can go farther on every hike. Responsibly sourced, ZQ-certified Me...

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

The Outdoor series was designed for running and hiking on rugged trails in unpredictable weather. Newly upgraded to Merino wool construction, the O...

Meet the one sock you'll need all winter. These wonderfully comfy socks give a nod to classic business sock but offer the comfort and benefits of m...

Feel the peak of hiking comfort with our Hike Targeted Cushion Ankle Socks. Designed with our top sock technologies and cushioning in key areas, ke...

Feel the peak of hiking comfort with our Hike Targeted Cushion Ankle Socks. Designed with our top sock technologies and cushioning in key areas, ke...

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

Hike how you like in our responsibly sourced, ZQ-certified Merino wool Hike Light Cushion socks. These hiking socks are packed with all our tried-a...

Hit that new trail in the Performance Hike Light Cushion Low Ankle sock, and you’ll be smiling from start to finish. This responsibly sourced Merin...

Nothing beats that panoramic view from the summit. Except maybe the enhanced comfort and durability of our Hike Light Cushion Panorama Crew Socks. ...

The most rugged trails call for the most dense cushioning. That's why you need a pair of our Hike Full Cushion Lolo Trail Crew Socks in your sock d...

Our Classic Hike Full Cushion Crew socks focus on comfort and durability, so you can go farther on every hike. Responsibly sourced, ZQ-certified Me...

These hike socks? They're made out of old hike socks. Yep, our Hike Classic Edition Light Cushion 2nd Cut Crew Socks are made with a mix of recycle...

With full, plush cushioning, the Classic Mountaineer Classic Edition Max Cushion Second Cut™ Crew Socks are just right for your long-distance and ...

Perform with the power and comfort of responsibly sourced, ZQ-certified Merino wool in our Hike Light Cushion Crew socks. Formerly known as PhD® Ou...

The most rugged trails call for the most dense cushioning. That's why you need a pair of our Hike Full Cushion Lolo Trail Crew Socks in your sock d...

The Hike Light Cushion Mountain Moose Crew Socks gets us about as close as we'd want to be to a moose in the wild. Designed with our top sock techn...

Our Classic Hike Full Cushion Crew socks focus on comfort and durability, so you can go farther on every hike. Responsibly sourced, ZQ-certified Me...

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

These hike socks? They're made out of old hike socks. Yep, our Hike Classic Edition Full Cushion 2nd Cut Crew Socks are made with a mix of recycled...

These hike socks? They're made out of old hike socks. Yep, our Hike Classic Edition Full Cushion 2nd Cut Crew Socks are made with a mix of recycled...

These hike socks? They're made out of old hike socks. Yep, our Hike Classic Edition Full Cushion 2nd Cut Crew Socks are made with a mix of recycled...

These hike socks? They're made out of old hike socks. Yep, our Hike Classic Edition Full Cushion 2nd Cut Crew Socks are made with a mix of recycled...

These hike socks? They're made out of old hike socks. Yep, our Hike Classic Edition Light Cushion 2nd Cut Crew Socks are made with a mix of recycle...

These hike socks? They're made out of old hike socks. Yep, our Hike Classic Edition Light Cushion 2nd Cut Crew Socks are made with a mix of recycle...

These hike socks? They're made out of old hike socks. Yep, our Hike Classic Edition Light Cushion 2nd Cut Ankle Socks are made with a mix of recycl...