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  • Smartwool - PhD Outdoor Ultra Light Crew Sock - Light Gray
  • Smartwool - PhD Outdoor Ultra Light Crew Sock - Charcoal

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  • Smartwool - PhD Outdoor Ultra Light Crew Sock - Light Gray
  • Smartwool - PhD Outdoor Ultra Light Crew Sock - Charcoal

Smartwool PhD Outdoor Ultra Light Crew Sock

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Free 2-Day Shipping on Orders Over $50 Order by 12/20*

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    5 Reviews


    Hike in comfort.

    Sewn with a blend of ultra-breathable, non-itchy merino wool and durable nylon, the SmartWool PhD Outdoor Ultra Light Crew Sock is designed to provide a minimalist feel for maximum performance on the trail.

    • An ultralight merino wool blend sock for hiking
    • Merino wool is breathable and naturally odor-resistant
    • Item #SWL00MT

    Tech Specs

    50% merino wool, 49% nylon, 1% elastane
    Recommended Use
    hiking & camping
    Manufacturer Warranty
    2 years

    Tech Specs

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    Perfect tall sock!

    • Fit: True to size
    • Size Bought: XL
    • Height: 6'4"
    • Weight: 195lbs

    I own several pairs of Smartwool PhD socks and have always been impressed by the comfort and wearability of these socks. I purchased these socks for longer day hikes, which is why I got the light weights, and they have been fantastic. Great fit to foot and the wicking material ensures comfort for long days. Strongly recommend . I wear a size 12 mens, and the XL fits perfect.

    Perfect lightweight hiking sock

    • Fit: True to size
    • Height: 5'9"
    • Weight: 150lbs

    I've been using Smartwool socks for years for skiing, but it wasn't until recently that I tried them out for hiking. Same great construction and mapping as I love from my ski socks, but in a nice mid-top version. These contour perfectly to my feet and provide the most comfort, moisture wicking, and anti-slippage of any sock I've ever worn. If you like your socks on the think side, this is the one for you.

    Can't Get Enough

    • Familiarity: I gave it as a gift but have feedback to share

    I got these for my man, and he's slowly been replacing his sock stock with the Smartwool line. These are a great pair to wear casually or for active wear, like hiking. He's been wearing these consistently for months, and no signs of them falling apart!

    Too light

    • Familiarity: I've put it through the wringer
    • Fit: True to size
    • Size Bought: Large
    • Height: 5'11"
    • Weight: 170lbs

    Bought two pairs for a JMT through hike, one fell apart after 6 days. I know they're ultra light, and I like having as thin and light of a sock as possible, but I wouldn't recommend this thin for most hiking. Was expecting a little more mileage. They were great when my feet got wet and were able to dry quickly though. The dusty JMT trails might have been what tore them apart so quickly, had a pair of lights that worked out better.

    Too light