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1/4 Top Running Sock - Ultralight

Size Guide

There’s something about trail running that can keep you going for miles — maybe it’s the quiet, or the scenery, or the adventure. But no matter how beautiful your surroundings are, nothing keeps you running like a breathable, soft, forget-it’s-there sock. Our ¼ Top Ultralight is the perfect trail running sock for warm days. The over-the-ankle height keeps trail debris out while allowing you to stay cool and comfortable. Hit the trail with these socks, then watch the miles fly by.

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Covered by Our Hassle-Free Lifetime Guarantee


CloudLine socks are backed by a hassle-free lifetime guarantee and made in America

Every sock we make is backed by a hassle-free lifetime guarantee. If there is ever an issue we’ll replace them. No hassles, conditions or strings attached.



Sock Features

  • Post-race feet with zero blisters? It’s not a fantasy with moisture-wicking merino wool. These socks wick your sweat away to keep your feet dry and blister-free.
  • Itch-free comfort is a must when you’re hitting the trail for miles at a time. Our ultra soft merino wool blend fits smoothly around your foot — no bunching, itching, or need to adjust.
  • Naturally odor-resistant merino wool keeps odors under control. Hit the town from the trail without needing a fresh pair of socks.
  • Push your limits knowing your socks can keep up — the reinforced heel and toe keep these socks performing on your most epic adventures.
  • Trail-tested (and approved!) on the most rugged PNW trails.

Sock Specs and Care

  • American Made from Quality Materials: The perfect blend of 59% Ultra Soft Merino Wool, 36% Nylon, and 5% Spandex.
  • Ultralight Weight: Ultralight and breathable for warm-weather runs.
  • ¼ Height: Sits just above the ankle to lockout trail debris, for perfect trail-running comfort.
  • Easy Care: Always wash inside out to prevent pilling. Machine wash and dry warm, do not bleach. Can also be hand washed and line dried on the trail.
  • Guaranteed for Life: Backed by Our Hassle-Free Lifetime Guarantee, It really covers it all.