BEST-IN-CLASS WOOL SOCKS BUILT FOR TIME AND DISTANCE
We put our feet through hell, so our socks must meet the highest standards—no blisters, no friction where the sock meets the shoe.
The Merino Wool Challenge Sock - Crew was built to tackle anything from rucking miles across the rainforest to sandbag workouts in your driveway, these sock
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751 ratings
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Not For Rucking Only
Not only do these socks feel great in my Mackalls, but they have become my all-round favorite socks for everyday living. They fit well in the heel and toe box, have just the right tightness, and keep my feet nice and warm, even when I wear them without shoes around the house. I will definitely stock up on them to get me through the winter.
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Christian · 8 days ago
Holding up well
Since receiving a few pairs of challenge socks, I’ve purposely decided to wear the same pair for a few weeks straight on my Rucks, 5 miles 3x’s a week,30lb plate, no holes, hot spots, no smell and my wife is nice enough to smell them for me to make sure my analysis is correct 👍 great socks and they pair well with your shoe and boot offerings.
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Bill · September 27, 2026
The Only Socks I Wear
I ruck up to 20 miles every day, and these are the only socks I wear. I have 3 pairs I rotate.