Some of our best fitting, most advanced run socks yet—we've packed years of testing, prototypes, and running smarts into these ZQ-Certified Merino wool socks. Featuring Light Elite cushioning in the ball and heel of the foot to help maximize comfort with minimal in-shoe volume, body-mapped mesh ventilation zones, and a Virtually Seamless™ toe, this running socks is ready to keep up with you.

S - women's size 4-6.5, M - women's size 7-9.5, L - women's size 10-12.5

• Sock Height: Micro
• Virtually Seamless™ toe for enhanced comfort
• Achilles tab designed to prevent sock from slipping down into footwear
• 1.5" overall height
• Made in USA of Imported Yarn: 56% Merino Wool, 41% Nylon, 3% Elastane

We've put all of our smarts into these new and improved Women's PhD® Run Ultra Light Micro socks. You won't break your stride, thanks to our Indestructawool™ technology designed for added durability and an Achilles tab designed to help prevent sock slippage. And by adding our brand-new Shred Shield™ technology to one of our best running socks, the wear and tear from toes is reduced, helping you push toward your finish line and achieve higher mileage.

S - women's size 4-6.5, M - women's size 7-9.5, L - women's size 10-12.5

• Sock Height: Micro
• Virtually Seamless™ toe for enhanced comfort
• Achilles tab designed to prevent sock from slipping down into footwear
• Made in USA of Imported Yarns: 48% Merino Wool, 48% Nylon, 4% Elastane

Wearing the Popcorn Cable is like wearing your favorite comfy sweater on your feet. Bursting with varying texture zones and patterns, this cushioned style is one of our most comfortable socks ever.

• Signature Smartwool® Holiday sock
• Sock Height: Crew

• Made in USA of Imported Yarn: 81% Merino Wool, 18% Nylon, 1% Elastane

Experience durability at its peak with the PhD® Outdoor Light Crew. Featuring Indestructawool™ technology, a wool-based durability construction, these hiking socks are ready for any adventure on your list. Plus, with body-mapped mesh zones, a Virtually Seamless™ toe, and our 4 Degree™ elite fit system, these ZQ-Certified Merino wool socks have comfort covered. The women’s-specific fit provides an overall slimmer fit and narrower heel.

S - women's size 4-6.5, M - women's size 7-9.5, L - women's size 10-12.5

• Sock Height: Crew
• Virtually Seamless™ toe for enhanced comfort
• 7.5" overall height
• Made in USA of Imported Yarn: 58% Merino Wool, 39% Nylon, 3% Elastane

An ankle-high powerhouse, the PhD® Outdoor Light Mini is made for mileage. Great for long summer treks, this performance hiking sock combines support, stretch, and comfort in a women’s-specific design and fit. Featuring Indestructawool™ technology for ultimate durability and the 4 Degree™ elite fit system for a dialed fit, these are sure to help you go far and feel good on any adventure. 

• Sock Height: Mini
• Virtually Seamless™ toe for enhanced comfort

• 3.75" overall height
• Made in USA of Imported Yarn: 58% Merino Wool, 40% Nylon, 2% Elastane

Our Women’s Run Zero Cushion Low Ankle socks offer the comfort and durability that will help make every mile feel good. Indestructawool™ and Shred Shield™ technologies increase the sock’s durability, while the 4 Degree™ elite fit system, Virtually Seamless™ toe, women's specific fit, and breathable mesh zones increase its comfort. No matter if you’re hitting the trail, the pavement, or the treadmill for some good old-fashioned training miles, be sure your gear includes the sock that will help you stay comfortable on every stride.

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