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Darn Tough delivers a seriously dialled-in option for high-mileage days, fast efforts, and steep climbs with the Run Micro Crew Ultra-Lightweight Running Sock. This updated design brings an airy feel, a secure fit, and the kind of durability that keeps pace with demanding training blocks. Built with thermoregulating Merino Wool, it balances comfort and performance without adding bulk.
Lightweight Comfort With Smart Support
The Run Micro Crew Ultra-Lightweight Running Sock is made for runners who want minimal weight and maximum function. A buttery-soft upper keeps the feel smooth against the foot, while reinforced zones in the heel, sole, and toe box add staying power where it counts. The result is a sock that feels quick, structured, and ready for long sessions.
Key Performance Features
- Micro Crew height for coverage without excess fabric
- Ultra-lightweight build for a barely-there feel
- Merino Wool blend for natural temperature regulation
- Arch support designed to help reduce fatigue
- Forefoot mesh zones for added breathability
- Reinforced heel and toe for dependable wear over time
Why It Works For Daily Training And Race Day
From steady road runs to punchy workouts, this Darn Tough favourite brings a polished mix of comfort and resilience. The fit is snug without feeling fussy, and the engineered construction helps keep the sock in place while maintaining a clean, streamlined profile inside your running shoes.
Technical Details
Height: Micro Crew
Weight: Ultra-Lightweight
Pair with: Running shoes, racing flats, athletic footwear
A Premium Feel With Everyday Staying Power
Looking for a sock that can handle repeat training miles and still feel fresh? The Run Micro Crew Ultra-Lightweight Running Sock brings together comfort, ventilation, and durability in a smart, performance-first package. It is a strong pick for runners who appreciate technical details and a smooth, distraction-free feel.
Ready to level up your sock drawer? Shop the Darn Tough Run Micro Crew Ultra-Lightweight Running Sock at Foveo Running and add a high-performance essential to your next run.
No Cushion
Our no cushion Running socks offer the ultimate next-to-skin fit and ultralight comfort.
Materials
51% Nylon 44% Merino Wool 5% Lycra Spandex
CARE INSTRUCTIONS
Machine wash in warm water on gentle cycle with socks inside-out. Do not bleach. Tumble dry on low or hang dry. Do not dry clean.
- Men's micro crew socks average 8.5 in. from heel to cuff - expect them to rise about 6 in. above a running sneaker.
- A performance fit means no slipping, no bunching, no blisters. Here's to focusing on your run and not your feet.
- Arch support alleviates foot fatigue and bunching for long-running comfort with zero slippage.
- Flex windows mean less material where your foot needs to move the most so nothing interferes with your stride.
- Runners enjoy Merino Wool's ability to dry quickly and move excess heat and moisture away from feet.
- Our lowest profile, ultra-lightweight yarns create zero bulk, zero itch socks that feel like a second skin.
- The “still” in Still Made in Vermont, USA is personal. We knit all our socks at our VT-based Mills - we can't imagine it any other way.
- Unconditionally Guaranteed for Life - if these aren’t the longest lasting socks you’ve ever owned, return them for another pair.