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...

Our Hike Light Cushion Crew, formerly PhD® Outdoor, is designed to help take care of your feet and elevate every hike. We've updated our best hike ...

The elasticized arch brace of the Classic Hike Full Cushion Solid Crew will ensure a secure fit while you hike. But that’s not all there is to like...

Perfect fit. Powerful durability. That's what you get when you put on our responsibly sourced Merino wool women's Hike Light socks. Formerly known ...

Formerly called PhD® the new Smartwool Hike represents Smartwool’s newest and most up-to-date performance hike socks. With a mid crew height and a ...

Formerly called PhD® the new Smartwool Hike represents Smartwool’s newest and most up-to-date performance hike socks. Do what feels natural in our ...

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...

Bring a little more Merino to your every day with the Women's Everyday Cable Crew Socks. These cozy Merino crews feature a slim fit for less bulk a...