Running Socks

Sometimes you just need a good run. Our PhD Run Cold Weather Mid Crew will get you out the door and help you stay outside longer. Our 4 Degree elit...

Drop the smartphone and pick up a smart sock. The PhD Outdoor Light Mountain Camo Print Crew provides a colorful design that will have you blending...

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 pr...

Check another landmark off your bucket list with the PhD Outdoor Light Arches Print Mid Crew. This men's sock uses Indestructawool technology to ma...

Head out and discover new trails in constant comfort with our Women's PhD Outdoor Light Print Mid Crew. Our revolutionary 360-degree printing proce...

We love the river trip vibe-heading off for a week on the river, cutting off your connection to the digital world, and taking time to celebrate nat...

Our Women's PhD Run Ultra Light Hex Print Micro socks incorporate all of the latest tech, including Indestructawool durability technology and Shred...

Say goodbye to boring, run-of-the-mill running socks. We've brought our 360-degree printing technology to our race-day-worthy run socks to give you...

For a sock that has it all, look no further. The PhD Outdoor Medium Pattern Crew offers fit, comfort, and durability wrapped together in one smart ...

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

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...

We've put all of our smarts into these new and improved Women's PhD Run Ultra Light Striped Micro socks. You won't break your stride, thanks to our...

For full-sized outdoor activities, here's a kid-sized performance sock. The elasticized arch brace, flat knit toe seam and ultra light cushioned so...

Less is all you need. Our Vertex Ultra-Light Cushion has the sleek feel of a super stripped down, lightweight running sock, but still delivers cush...

Who says you can't have it all? Our Vertex Ultra-Light Cushion has the sleek feel of a super stripped down, lightweight running sock still delivers...

Less is all you need. Weighing in at only 13 grams per sock our Vertex No-Show tabs are incredibly light but still incredibly tough. You'll forget ...

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...

Who says you can't have it all? Our Vertex Ultra-Light Cushion has the sleek feel of a super stripped down, lightweight running sock but still deli...

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

Featuring Light Elite cushioning, these socks contain targeted cushioning placed only where runners need it most, on the ball and heel of the foot....

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

Color: Black and Purple Size: Medium (fits women size 7-9.5) U.S. Merino Wool: Merino wool is soft, itch-free, naturally odor and bacteria resistan...

Color: Plum Size: Medium (fits women size 7-9.5) U.S. Merino Wool: Merino wool is soft, itch-free, naturally odor and bacteria resistant, cool in t...

Color: Denim Size: Medium (fits women size 7-9.5) In partnering with the CDTC, we created The Grays Peak, featuring the CDT logo emblazoned on the ...