Winter

No matter how cold it gets on your next outdoor excursion, your feet will be warm and happy in 40 Below II. The cushioned crew, elasticized arch and man-made materials make this sock a keeper.

The sock name speaks for itself, and just looking at these beautiful babies takes you to cold nights and warm fires, with extra blankets. The cushioned crew and high wool content will have you singing "Oh, Canada!" in no time.

You don't know cozy until you try our brand new Extra Heavy Cozy Slipper sock. Perfect for lazy Sundays and chilly days working from home, our thickest, warmest, cushiest sock features our Smartwool® 2 Degree fit system with elasticized arch and ankle support designed to keep the sock in place, as well as a roll-top welt for a loose, yet comfortable fit. With fuzzy, super-soft Merino wool, you'll find any excuse to stay in the house and keep these on all day.

For those days when you feel like getting way out there, our PhD® Nordic Light Elite Pattern socks help boost performance and comfort. With durable, Indestructawool™ technology, a 4 Degree™ elite fit system, and body-mapped mesh zones for breathability, these Nordic ski socks will help keep your feet warm and snug as you cruise through the winter countryside.

Whether it’s a chilly winter morning or bluebird spring afternoon, it’s always easier to get after one more lap when you’re comfortable. PhD® Nordic socks were designed with that long-distance comfort in mind, from mesh zones for ventilation to strategic cushioning in the toe and heel that provides extra padding without sacrificing boot fit. We've added Indestructawool™ technology in high impact zones to increase durability, without the bulk. You'll also get a secure fit above and below the heel, under the arch and across the instep thanks to the 4 Degree™ Elite fit system. So keep on moving, because our best Nordic wool sock has you covered.

For those days when you feel like getting way out there, our PhD® Nordic Medium Patter socks help boost performance and comfort. With durable, Indestructawool™ technology, a 4 Degree™ elite fit system, and body-mapped mesh zones for breathability all built into our responsibly-sourced wool, these Nordic ski socks will help keep your feet warm and snug as you cruise through the winter countryside.

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.

Using insights of pro skier, gold medalist, and Smartwool athlete Mikaela Shiffrin, we constructed her signature sock, the PhD® Pro Ski Race. We built these socks with our Indestructawool™ technology for enhanced durability, our 4 Degree™ elite fit system for a dialed, performance-oriented fit, and our Shred Shield™ technology for reduced wear from toes. Its design includes contoured shin cushioning, as well as a wider welt for a secure fit and comfort. The newly engineered arch elastic helps enhance ski feel and in-boot fit. When you wear what the pros do, it helps you perform like them too.

We partnered with Smartwool athlete Chris Benchetler to combine his art with our Merino wool ski socks. Our PhD® Ski Light Elite Homechetler Print features our Indestructawool™ technology for enhanced durability, our 4 Degree™ elite fit system for a dialed, performance-oriented fit, and our Virtually Seamless™ toe for enhanced in-boot comfort. They are designed with a wider welt to help ensure all-day comfort, targeted cushioning around the toe, heel, and shin, and body-mapped mesh zones help keep things breathable. With all of this power-packed into one pair of ski socks, you just might have your best season to date. *Due to the unique printing process, each sock may vary in pattern and color from images on site and per pair

Looking for a lightweight, bulk-free sock to help add some comfort to your ski days? Look no further than the PhD® Ski Light Elite. These men's ski socks equip you with our Indestructawool™ technology for enhanced durability, our 4 Degree™ elite fit system for a dialed, performance-oriented fit, and our Virtually Seamless™ toe for enhanced in-boot comfort. They are designed with a wider welt to help ensure all-day comfort, targeted cushioning around the toe, heel, and shin, and body-mapped mesh zones help keep things breathable. With how technical and comfortable these socks are, you might love them as much as you love a day on the slopes.

Perfectly-patterned and perfectly-constructed, our PhD® Ski Medium Pattern helps elevate any ski day. With our Indestructawool™ technology for enhanced durability, our Virtually Seamless™ toe for enhanced comfort, and our 4 Degree™ elite fit system for a dialed, performance-oriented fit, our thickest ski socks balance comfort and warmth so you can ski on without any worries.

When you want the absolute minimum between your feet and your ski boot for a more technical fit, you need our PhD® Ski Ultra Light socks. Our thinnest, most lightweight ski socks equip you with our Indestructawool™ technology for enhanced durability, our 4 Degree™ elite fit system for a dialed, performance-oriented fit, and our Shred Shield™ technology for reduced wear from toes. They are designed with a wider welt to help ensure all-day comfort and body-mapped mesh zones help keep things breathable. All in all, these are the socks you want in your technical ski boots as you head for a day full of skiing.

Our PhD® Snow Light Elite Print combines the benefits of responsibly sourced Merino wool with unique Eric Jackson inspired artwork for a one-of-a-kind snow sock. With our Indestructawool™ technology for enhanced durability, our Virtually Seamless™ toe for enhanced comfort, and our 4 Degree™ elite fit system for a dialed, performance-oriented fit, these men's socks help elevate days filled with snowboarding, snowshoeing, or whatever else you get into this winter. *Due to the unique printing process, each sock may vary in pattern and color from images on site and per pair

Add some lightweight comfort to your ski boots and ski days™thanks to the greatness that is responsibly sourced Merino wool. Our PhD® Ski Light Elite Pattern features our Indestructawool™ technology for enhanced durability, our 4 Degree™ elite fit system for a dialed, performance-oriented fit, and our Virtually Seamless™ toe for enhanced in-boot comfort. They are designed with a wider welt to help ensure all-day comfort, targeted cushioning around the toe, heel, and shin, and body-mapped mesh zones help keep things breathable. Now, you have everything you need for your best day on the slopes yet.

Add some lightweight comfort to your ski boots and ski days™thanks to the greatness that is responsibly sourced Merino wool. Our PhD® Ski Light Elite Pattern features our Indestructawool™ technology for enhanced durability, our 4 Degree™ elite fit system for a dialed, performance-oriented fit, and our Virtually Seamless™ toe for enhanced in-boot comfort. They are designed with a wider welt to help ensure all-day comfort, targeted cushioning around the toe, heel, and shin, and body-mapped mesh zones help keep things breathable. Now, you have everything you need for your best day on the slopes yet.

The combination of Merino wool and PRIMALOFT® provides warmth. The Hybrid construction ensures the socks stay in place comfortably. Made in Europe. Adults ELITE style.

DRIRELEASE® Merino wool knee-high socks are light and warm. They are sculpted to fit perfectly and deliver performance and comfort. Adults ELITE style.

DRIRELEASE® Merino wool knee-high socks are light and warm. They are sculpted to fit perfectly and deliver performance and comfort. Adults ELITE style.

Heavyweight socks that feature a full layer of thick cushioning for maximum comfort. Adults ELITE style.

Heavyweight socks that feature a full layer of thick cushioning for maximum comfort. Adults ELITE style.

Heavyweight socks that feature a full layer of thick cushioning for maximum comfort. Adults ELITE style.

Lightweight, durable and odor-resistant trail socks designed for maximum comfort and premium fit, our Hike+ Heavy Crew socks are ideal for rugged hikes and backpacking trips.

Durable, odor-resistant, expedition-weight merino socks designed for maximum comfort and premium fit, our Mountaineer Mid Calf socks are ideal for big climbs and snowy conditions.

Stretchy and supportive merino socks for technical performance on snow, our strategically cushioned Ski+ Light Over the Calf socks are durable, breathable, and comfortable, with anatomical support in key areas.

Stretchy and supportive merino socks for technical performance on snow, our fully cushioned Ski+ Medium Over the Calf socks are durable, breathable, and comfortable, with anatomical support in key areas.