REI Co-op Merino Wool Midweight Hiking Crew Socks

Color: Castlerock
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Members get an estimated $2.00 (10%) back on this item as a part of your annual .

Members get an estimated $2.00 (10%) back on this item.
To buy,  sign in as an REI Co-op Member or join now.

With allover cushioning, the REI Co-op Merino Wool Midweight hiking crew socks add a bit of warmth for cooler hikes—but they're still naturally breathable, moisture-wicking and odor-resistant.


  • Reinforcement at heels, toes, footbeds and Achilles provides long-wearing comfort
  • Stretch arch bands provide effective support
  • Seamless toes prevent chafing
  • Machine wash in cold or warm water, no bleach or fabric softener; tumble dry low
  • Made in USA with imported and domestic yarns
  • REI is Climate Neutral Certified; as we work to actively reduce our footprint, we measure annual carbon emissions and purchase an equivalent amount of verified carbon credits

Made in USA.

View all REI Co-op Men's Hiking Socks

Technical Specs

Best Use



81% merino wool/18% nylon/1% LYCRA spandex

Sock Height


Sock Cushioning

Medium Cushioning

Moisture Wicking





From a Climate Neutral Certified brand

Size Chart

U.S. Men's5.5-8.59-1212.5-145.5-8.59-14
U.S. Women's4-6.57-9.510-12.54-9.510-12.5

Sizing Notes

For socks, please use shoe size.

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