Smartwool UK

Go far. feel good.™

Born on the slopes of the Colorado Rockies, we were the first brand to add Merino wool to ski socks—unlocking the power of this natural fiber for performance sports. From there, we’ve continued to innovate and create apparel and socks designed to help you go far and feel good in the outdoors.



PhD Outdoor Socks
PhD® Outdoor Socks

Designed to keep you comfortable on any trail

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PhD Snow Socks
PhD® Snow Socks

Built to work with ski and snowboarding boots

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Merino 250 Base Layers
Merino 250 Base Layers

Made to help you stay warm and dry

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Smartwool PhD Outdoor Socks

Socks matter. Whether you’re going on a quick day hike or touring in the mountains, the right socks will help keep you focused on the journey in front of you. Our PhD® Outdoor socks combine Merino wool comfort, breathable vent zones, and a dialed-in, gender-specific fit to keep your feet happy and supported on your adventures.



Features & Benefits

  1. Activity-specific mesh zones to enhance breathability
  2. 4 Degree™ elite fit system to help keep socks comfortably in place
  3. Indestructawool™ technology—ultimate durability for enduring performance
  4. Virtually Seamless™ toe for ultimate in-shoe comfort
  • ZQ-certified, ethically sourced, ultra-soft Merino wool
  • Different cushioning levels allowing you to customize your fit
  • Gender specific fit
PhD Outdoor Sock Technology
PhD Outdoor Mens Sock
men’s phd® OUtdoor Medium PatTeRN CREW DEEP NAVY shop now
PhD Outdoor Pattern Sock
men’s phd® OUtdoor medium PatTeRN CREW black shop now
PhD Outdoor Crew Sock
men’s phd® OUtdoor Light PatTeRN CREW Charcoal shop now
Womens PhD Outdoor Crew
women’s phd® OUtdoor Medium PATTERN CREW taupe shop now
PhD Womens Medium Sock
women’s phd® Outdoor medium Crew medium gray shop now
Smartwool PhD Snow Socks

Our PhD® Ski and Slopestyle socks are designed to work with your ski and snowboard boots to keep you warm and dry and help protect against blisters and bruises. They’re made with activity-specific cushioning, vent zones, super-soft Merino wool, and gender-specific fits.



Features & Benefits

  1. Activity-specific mesh zones to enhance breathability
  2. 4 Degree™ elite fit system to help keep socks comfortably in place
  3. Indestructawool™ technology—ultimate durability for enduring performance
  4. Virtually Seamless™ toe for ultimate in-boot comfort
  • ZQ-certified, ethically sourced, ultra-soft Merino wool
  • Different cushioning levels allowing you to customize your fit
  • Gender specific fit
PhD Snow Sock Technology
PhD Ski Medium Sock
men’s phd® SKI MEDium PATteRN Black shop now
Mens PhD Ski Medium Pattern
men’s phd® SKI MEDium PATteRN charcoal shop now
PhD Men's Ski Light Sock
men’s phd® SKI light elite PATteRN dark blue shop now
Womens Ski Medium Pattern
women’s phd® Ski MEDIUM pattern Mountain purple shop now
PhD Outdoor Mens Sock
women’s phd® Slopestyle Deep navy shop now
Smartwool Merino 250 Base Layers

Our Merino 250 base layers feature 100% ZQ-certified Merino wool. They’re purpose-built for cool- to cold-weather adventures. Every 250 is incredibly soft, uses an interlocking knit for warmth and loft without bulk, and resists odors to help keep you feeling fresh. These base layers are a solid start to any slope or outing this winter.



Features & Benefits

  • 100% Merino wool construction
  • Seams designed to minimize chafing
  • Ethically sourced, ZQ-certified wool
  • Warmer fabric for colder months
  • Soft and breathable
Womens Merino 250 Base Layer
WoMen’s Merino 250 Base layer Pattern crew black/charcoal heather shop now
Womens 1/4 Zip Base Layer
Women’s Merino 250 Base layer Pattern 1/4 zip Light Gray-Moonbeam Heather shop now
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