models feet on granite steps wearing the men's 1039 ultralight no show running sock

Running Socks

Model tying their run shoes wearing the men's run quarter socks in dark teal

Men's Running Socks

Model tying her run shoes wearing the women's relay micro crew running socks

Women's Running Socks

model running on dirt wearing the 1050 pacer micro crew in glacier featuring a blue body and white rabbit

Running Best Sellers

The best running socks actively prevent blisters, handle sweat, and never slip. Built for everyone from casual joggers to marathoners, run socks reduce friction and stay comfortable across road, trail, and long distances. Knit with ultralight Merino Wool, Darn Tough running socks naturally regulate temperature, resist odors, and deliver second-skin comfort mile after mile, all backed by our Unconditional Lifetime Guarantee.

Blister Prevention

Nothing ruins a run faster than blisters. Anti-blister running socks help reduce hotspots and stop painful blisters in their tracks. Our thin Merino Wool styles naturally wick sweat and regulate foot temperature.

All Darn Tough socks have a secure, performance fit that hugs the foot so the sock stays in place, reducing friction and rubbing that can lead to hotspots and blisters. Optimized support around the center of the foot provides arch support and helps these socks fit like a second skin that works with your run shoe.

Cushion Levels

Dial in your sock selection based on cushion preference and run style. Long distance and trail runners tend to gravitate to cushion socks for soft, cushy support, impact protection and rebound. Running socks with no cushion are often preferred for shorter distances or those who like a minimal, close-to-the-pavement feel.

Materials

Merino Wool is soft, durable, and can manage moisture and adapt to different conditions. Synthetic materials only mimic what Merino does naturally. We lead with ultralight Merino fibers, then layer in nylon for flex and elastane (spandex) for a dialed fit. We also knit a select offering of fully synthetic running socks with our same performance fit and lifetime guarantee.

Run Weights: Ultralight & Lightweight

Darn Tough Merino Wool running socks are knit in two primary weights to keep you comfortable in any climate. Both utilize the natural performance of Merino fibers to wick moisture, resist odors, and thermoregulate — keeping you cool in hot weather, warm in cold weather, and dry in wet weather, preventing the dreaded "wet sock" effect.

Ultra-Lightweight: A ghost of a sock. The ideal choice for track days, speed work, and hot-weather running where you want to keep your feet cool.
Lightweight: Still thin, but a comparatively thicker sock. These are the go-to for training runs, winter running, or runners who prefer a slightly plusher feel.

Fit & Sock Height

Our running socks all have a performance fit that helps prevent blisters, slippage, and muscle fatigue. This close fit acts like a second skin and works with your run shoe. We knit them in three heights:

Micro Crew Socks: The trail running go-to for extra protection against dirt and scrapes, sitting just below a traditional crew length.
Quarter Socks: Sits just over the ankle bone to keep the grit out and offer a bit of protection.
No Show Tab Socks: Low-profile and barely detectable. Great for track days and indoor workouts.

Shop our selection of Men's Running Socks and Women's Running Socks. We also offer free returns and exchanges for 90 days, as well as free shipping on orders $50 or more. Darn Tough premium running socks are available at thousands of retailers across the United States, including REI, Sportsman's Warehouse, and Marathon Sports.

The Best Socks for Runners

Durable socks for runners, knit with Merino Wool and engineered to stay dry, comfortable, and fit any run you have in mind.

Explore Run

Are Running Socks Worth It?

The most important reason that running socks are worth it compared to regular cotton socks is that they are specifically designed to stay in place, breathe, and prevent blisters. Darn Tough stands by the comfort and durability of our running socks with our Lifetime Guarantee.

Should Running Socks Be Thick Or Thin?

Personal preference is the biggest factor in deciding whether your running socks should be thick or thin. However, here are a few rules of thumb to help you choose. Thick running socks are best for warmth and impact absorption; thin running socks are best for connectivity and close-fitting shoes.

FAQs

Good running socks are designed to help you perform better, and they’re worth the investment. When choosing, look for a snug, performance fit that won’t slip or bunch, seamless construction, optimized arch support, and targeted cushioning in high-friction areas. If you want socks that last, choose a pair made with premium fibers - like Merino Wool - and backed by a lifetime guarantee.

Wool socks are great for running. It might sound counterintuitive, but Merino Wool fibers are naturally soft, durable, and thermoregulating - meaning they keep your feet cool when it's hot and warm when it’s cold outside. Darn Tough combines ultrafine Merino Wool and breathable mesh to create the best wool running socks that regulate temperature, wick moisture, resist odor, and stay comfortable across long distances and changing running conditions.

Merino Wool makes the best running socks to prevent blisters. Darn Tough’s socks for running are knit with moisture-wicking Merino Wool and have a snug, performance fit with targeted cushioning over high-friction zones, and optimized support.

When choosing running socks for hot weather, select lightweight socks with low-cushion profiles that maximize breathability. Darn Tough knits ultralight run socks with Merino Wool because it naturally thermoregulates to keep feet cool, wicks moisture, and resists odors. In the heat, these thin socks act like a second skin, protecting feet from friction, hotspots, and blisters while you push the pace.

In general, cushioned running socks are best for long-distance or marathon runners. By adding extra padding under the foot and over the Achilles, cushioned run socks offer longer-lasting durability, rebound, and impact protection mile after mile. Merino Wool is the best fiber for long runs because of its natural ability to manage moisture, regulate temperature, and prevent blisters. Some ultra long-distance runners carry extra Merino running socks with them to swap mid-race and essentially hit reset on their padding and long-range comfort.