Best Selling Running Socks Collection

ISW Isolwool® Trail Cuff (3 pair pack)
ISW Isolwool® Trail Cuff (3 pair pack)
ISW Isolwool® Trail Cuff (3 pair pack)
ISW Isolwool® Trail Cuff (3 pair pack)

ISW Isolwool® Trail Cuff (3 pair pack)

Regular price $25.00
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Reinforced Trail Cuff? Check.

The new ISW is a power-packed running sock built for the trail and beyond. Constructed with Isolwool®, the ISW utilizes merino wool and polypropylene to deliver superior moisture movement. A light cushion prevents blistering and enables prolonged performance in the harshest conditions. Wool naturally fights bacteria allowing the sock to remain clean and fresh. The ISW is designed to perform in hot or cold environments - and to excel on the trail.

39% Merino Wool, 39% Polypropylene, 20% Nylon, 2% Spandex

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F4 Magic Pop Low (3 pair pack) - Fitsok.com
F4 Magic Pop Low (3 pair pack) - Fitsok.com
F4 Magic Pop Low (3 pair pack) - Fitsok.com
F4 Magic Pop Low (3 pair pack) - Fitsok.com
F4 Magic Pop Low (3 pair pack) - Fitsok.com
F4 Magic Pop Low (3 pair pack) - Fitsok.com
F4 Magic Pop Low (3 pair pack) - Fitsok.com

F4 Magic Pop Running Socks Variety Pack (3 pair pack)

Regular price $25.00
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Designed to meet the demands of race-day athletes, these F4 Low Cut Running Socks utilize compressed venting and moisture-wicking technology to provide you relief, even in the most extreme conditions. Made with Sorbtek®, this sock channels moisture away from the foot three times faster than other running socks. These features keep your feet cool and dry no matter how long or hard you run. Anatomical left-right foot construction provides you with a precise fit, while a unique cushioning system keeps the most vulnerable parts of your foot safe and protected from blisters and shoe friction. Our F4 Low Cut Running Socks are only available in no-show length, which is perfect for the runner who prefers a subtler style.

Each F4 Athletic Sock Variety Pack contains three pairs of socks in three different colors: Magic Mint, Popping Purple, and Fabulous Fuchsia. Don't worry: these socks are fun, but they still utilize all the same technology loaded into our standard colors. The only difference is that the F4 Athletic Sock Variety Pack will keep your feet looking as fast as they feel. Get ready to see a difference in your workouts!

Every pair of our F4 Low Cut Running Socks are made in the USA. The family-owned sock factory, founded by two brothers who also happen to be runners and third-generation sock-makers, is located in North Carolina. We make our socks with movement in mind, and our F4 Athletic Sock Variety Pack gives you fresh running socks to wear throughout the week, so you don't have to wash the same pair multiple times in one week. We're proud of our performance-driven products, and we're confident that you'll feel a difference after wearing a pair of our cushioned, moisture-wicking socks.

Make sure you subscribe to our newsletter to receive 40% off your first purchase. We'll keep you posted on all the latest news and exclusive offers, so you can get the best deal on the highest quality running socks there are! If you have any questions, feel free to get in contact with us.

Made of 83% Nylon, 16% Sorbetk Polyester, 1% Spandex

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Q5 No-Show Charcoal (3 pair pack) - Fitsok.com
Q5 No-Show Charcoal (3 pair pack) - Fitsok.com
Q5 No-Show Charcoal (3 pair pack) - Fitsok.com
Q5 No-Show Charcoal (3 pair pack) - Fitsok.com
Q5 No-Show Charcoal (3 pair pack) - Fitsok.com
Q5 No-Show Charcoal (3 pair pack) - Fitsok.com
Q5 No-Show Charcoal (3 pair pack) - Fitsok.com
Q5 No-Show Charcoal (3 pair pack) - Fitsok.com
Q5 No-Show Charcoal (3 pair pack) - Fitsok.com

Q5 No Show Socks for Runners (Charcoal)

Regular price $28.00
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Say hello to the all-new Q5 Charcoal No Show Running Socks! Built from the ground up with Parallel Fusion Knit Technology, the Q5 series blends extreme performance with tons of attitude, available in a myriad of different colors to suit every athlete. This particular pack comes in three different accent colors with the same Charcoal background: Black, Royal Blue, and Navy Blue. Be sure to check out our other Q5 socks in Heather Gray!

Not only are these Q5 Charcoal No Show Running Socks stylish, but they’re also super functional. The Vented Mesh keeps your foot cool and dry to boost your endurance levels, helping you run longer so that you can get the most out of your workout. Meanwhile, Crash Padding in the forefoot gives you a long, smooth ride, even if you run for miles and miles at a time! An Arch Support and Engineered Deep Heel give you the support you need and keep the sock in place; after all, nothing is more distracting than slipping and sliding fabric. The Zone Compression Construction that our Q5 Charcoal No Show Running Socks provide fits your foot comfortably and naturally. We firmly believe that athletic socks should be as comfortable and functional as possible, which is why we started FitSok in the first place!

Each pair of our Q5 Charcoal No Show Running Socks is made in our North Carolina factory, which means that when you shop with us, you get USA-made products. FitSok is better than other athletic sock manufacturers for many reasons, but the number one thing that sets our brand apart from the rest is that we’re runners ourselves. We know what you need to perform at your best because we understand everything that running requires. Don’t keep buying socks that come apart after only a few months of using them; instead, invest in socks with a lifetime guarantee at an unusually affordable price! We promise that you’ll never want to go back to regular cotton socks once you try our high-performance ones.

Made of 83% Nylon, 16% Sorbetk Polyester, and 1% Spandex.

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Q5 No-Show Heather (3 pair pack) - Fitsok.com
Q5 No-Show Heather (3 pair pack) - Fitsok.com
Q5 No-Show Heather (3 pair pack) - Fitsok.com
Q5 No-Show Heather (3 pair pack) - Fitsok.com
Q5 No-Show Heather (3 pair pack) - Fitsok.com
Q5 No-Show Heather (3 pair pack) - Fitsok.com
Q5 No-Show Heather (3 pair pack) - Fitsok.com
Q5 No-Show Heather (3 pair pack) - Fitsok.com
Q5 No-Show Heather (3 pair pack) - Fitsok.com

Q5 No-Show Heather (3 pair pack)

Regular price $28.00
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Introducing the all-new Q5. Built from the ground up with Parallel Fusion Knit Technology, the Q5 blends extreme performance with tons of attitude. Vented mesh keeps the foot cool, while Crash Padding in the forefoot allows for a smooth ride. An Arch Support and Engineered Deep Heel keep the sock in place while Zone Compression Construction fits to your foot comfortably and naturally.

Each pack of Q5 comes with three unique pairs: Teal / Navy / Berry

  83% Nylon, 16% Sorbetk Polyester, 1% Spandex

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F4 Tech (3 pair pack) - Fitsok.com
F4 Tech (3 pair pack) - Fitsok.com

F4 Tech (3 pair pack)

Regular price $25.00
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Designed to meet the demands of race-day athletes, the F4 utilizes to provide compressed venting and moisture wicking in the most extreme conditions. Made with Sorbtek®, this sock channels moisture away from the foot, keeping it cool and dry. Anatomical left-right foot construction allows for precise fit, while a unique cushioning system provides comfort in specific pressure areas. Achilles protection reduces blistering on the back of the foot, and a front tab protects against shoe friction. The F4 is only available in no-show length.

 83% Nylon, 16% Sorbetk Polyester, 1% Spandex

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Speed Wool Crew (Single Pair) - Fitsok.com

January Men's Runner Sock of the Month

Regular price $14.00
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Our January Men’s Sock of the Month keeps you Warm in Wool! Designed with fun patterns and colors so that you can show off your personality even while you conquer your most difficult runs, we think you’ll be impressed with this men’s wool running sock. Who says wool and running can’t go together?

Nothing is more uncomfortable or distracting than hot, sweaty feet when you’re in the middle of a difficult run. Featuring superior moisture-wicking technologies that keep your feet cool and dry no matter how hard you run, these CF2 Limited Edition socks are constructed with ISW Wool, engineered with mesh venting and Flowtek channels that move moisture and heat away from the foot even while the incredible arch support these compression socks offer keeps the socks snug and unmoving. We know; our January Men’s Sock of the Month seems too good to be true!

It’s important that you grab this men’s wool running sock while you can, especially because we only made limited quantities! #RunForIt

All of our socks are USA-made. The two brothers who started FitSok happen to be third-generation sock makers and passionate runners! With a factory located in the beautiful and mountainous North Carolina, we knew that socks could be better–especially athletic socks–which we work hard to provide you with the highest quality materials at the very best prices! Make sure you have fresh, clean, reliable, performance-driven, cushioned running socks to get you through the week by buying yourself a handful of your favorite pairs!

Have any questions? Contact our customer service team. Don’t forget to join our email list for exclusive offers and 40% off your first purchase if you love what you see. We love what we do, and we can’t wait to see all the milestones you reach while wearing the January Men’s Sock of the Month!

Made of 58% Merino Wool, 40% Nylon, and 2% Lycra. 

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Speed Wool Crew (Single Pair) - Fitsok.com

Sock of the Month Running Socks

Regular price $14.00
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Stay Warm in Wool with our January Women's Sock of the Month! You might not think wool and running can go together, but we think you'll be impressed with this women's wool running sock, designed with fun patterns and colors so that you can show off your personality even while you conquer your most difficult runs! Say goodbye to boring black and white and say hello to pretty purple and blue.

When you're in the middle of a difficult run, the last thing you need is to get distracted by hot, sweaty feet. These CF2 Limited Edition socks are constructed with ISW Wool, which features superior moisture-wicking technology that keeps your feet cool and dry no matter how hard you run. The ISW Wool is engineered with mesh venting and Flowtek channels, which move moisture and heat away from the foot, even while the incredible arch support these compression socks offer keeps the socks snug and unmoving. Does it seem too good to be true? That's why it's our January Women's Sock of the Month!

We made this women's wool running sock in limited quantities, so you must get 'em quick! #RunForIt

Every pair of our socks are made right here in the USA. Our factory is located in the beautiful and mountainous North Carolina, and the two brothers who started FitSok happen to be third-generation sock makers AND passionate runners! We knew that socks could be better, ESPECIALLY athletic socks, which is why we have worked so hard to provide you with the highest quality materials at the best prices! Stock up on a few of your favorite pairs, or buy a couple of variety packs, so that you have fresh, clean, reliable, performance-driven athletic socks to carry you throughout the week!

Don't forget to join our email list for exclusive offers and 40% off your first purchase if you love what you see. We love what we do, and we can't wait to see all the milestones you reach while wearing the January Women's Sock of the Month!

Made of 58% merino wool, 40% nylon, 2% Lycra

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ISW Isolwool® Heather Trail Cuff (3 pair pack)
ISW Isolwool® Heather Trail Cuff (3 pair pack)
ISW Isolwool® Heather Trail Cuff (3 pair pack)
ISW Isolwool® Heather Trail Cuff (3 pair pack)
ISW Isolwool® Heather Trail Cuff (3 pair pack) - Fitsok.com

ISW Isolwool® Heather Trail Cuff (3 pair pack)

Regular price $25.00
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Reinforced Trail Cuff? Check.

The new ISW is a power-packed running sock built for the trail and beyond. Constructed with Isolwool®, the ISW utilizes merino wool and polypropylene to deliver superior moisture movement. A light cushion prevents blistering and enables prolonged performance in the harshest conditions. Wool naturally fights bacteria allowing the sock to remain clean and fresh. The ISW is designed to perform in hot or cold environments - and to excel on the trail.

39% Merino Wool, 39% Polypropylene, 20% Nylon, 2% Spandex

sizing chart
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ISW Isolwool® Trail Cuff (3 pair pack)  Gray, Charcoal, Black - Fitsok.com
ISW Isolwool® Trail Cuff (3 pair pack)  Gray, Charcoal, Black - Fitsok.com
ISW Isolwool® Trail Cuff (3 pair pack)  Gray, Charcoal, Black - Fitsok.com
ISW Isolwool® Trail Cuff (3 pair pack)  Gray, Charcoal, Black - Fitsok.com
ISW Isolwool® Trail Cuff (3 pair pack)  Gray, Charcoal, Black - Fitsok.com
ISW Isolwool® Trail Cuff (3 pair pack)  Gray, Charcoal, Black - Fitsok.com
ISW Isolwool® Trail Cuff (3 pair pack)  Gray, Charcoal, Black - Fitsok.com
ISW Isolwool® Trail Cuff (3 pair pack)  Gray, Charcoal, Black - Fitsok.com

ISW Isolwool® Trail Cuff (3 pair pack) Gray, Charcoal, Black

Regular price $25.00
/

Reinforced Trail Cuff? Check.

The new ISW is a power-packed running sock built for the trail and beyond. Constructed with Isolwool®, the ISW utilizes merino wool and polypropylene to deliver superior moisture movement. A light cushion prevents blistering and enables prolonged performance in the harshest conditions. Wool naturally fights bacteria allowing the sock to remain clean and fresh. The ISW is designed to perform in hot or cold environments - and to excel on the trail.

39% Merino Wool, 39% Polypropylene, 20% Nylon, 2% Spandex

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Hyper Stripe Crew (Neon Pink & Yellow Single Pair)
Hyper Stripe Crew (Neon Pink & Yellow Single Pair)
Hyper Stripe Crew (Neon Pink & Yellow Single Pair)
Hyper Stripe Crew (Neon Pink & Yellow Single Pair)
Hyper Stripe Crew (Neon Pink & Yellow Single Pair)
Hyper Stripe Crew (Neon Pink & Yellow Single Pair)

Hyper Stripe Crew (Neon Pink & Yellow Single Pair)

Regular price $14.00
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Gear up for Hyper Stripe Fitsoks!

These CF2 Limited Edition are constructed with performance features for Comfort and Fit. Mesh venting and Flowtek™ channels move moisture and heat away from the foot, while a Max Arch support keeps the socks snug. 

We've created limited quantities in these socks. Get 'em quick! #RunForIt

58% Polyester, 40% nylon, 2% Lycra

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Hyper Stripe Crew (Grey & Blue Single Pair)
Hyper Stripe Crew (Grey & Blue Single Pair)
Hyper Stripe Crew (Grey & Blue Single Pair)
Hyper Stripe Crew (Grey & Blue Single Pair)
Hyper Stripe Crew (Grey & Blue Single Pair)
Hyper Stripe Crew (Grey & Blue Single Pair)

Hyper Stripe Crew (Grey & Blue Single Pair)

Regular price $14.00
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Gear up for Hyper Stripe Fitsoks!

These CF2 Limited Edition are constructed with performance features for Comfort and Fit. Mesh venting and Flowtek™ channels move moisture and heat away from the foot, while a Max Arch support keeps the socks snug. 

We've created limited quantities in these socks. Get 'em quick! #RunForIt

58% Polyester, 40% nylon, 2% Lycra

sizing chart
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Hyper Stripe Crew (Green & Yellow Single Pair)
Hyper Stripe Crew (Green & Yellow Single Pair)
Hyper Stripe Crew (Green & Yellow Single Pair)
Hyper Stripe Crew (Green & Yellow Single Pair)
Hyper Stripe Crew (Green & Yellow Single Pair)
Hyper Stripe Crew (Green & Yellow Single Pair)

Hyper Stripe Crew (Green & Yellow Single Pair)

Regular price $14.00
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Gear up for Hyper Stripe Fitsoks!

These CF2 Limited Edition are constructed with performance features for Comfort and Fit. Mesh venting and Flowtek™ channels move moisture and heat away from the foot, while a Max Arch support keeps the socks snug. 

We've created limited quantities in these socks. Get 'em quick! #RunForIt

58% Polyester, 40% nylon, 2% Lycra

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Hyper Stripe Crew (Black & Grey Single Pair)
Hyper Stripe Crew (Black & Grey Single Pair)
Hyper Stripe Crew (Black & Grey Single Pair)

Hyper Stripe Crew (Black & Grey Single Pair)

Regular price $14.00
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Gear up for Hyper Stripe Fitsoks!

These CF2 Limited Edition are constructed with performance features for Comfort and Fit. Mesh venting and Flowtek™ channels move moisture and heat away from the foot, while a Max Arch support keeps the socks snug. 

We've created limited quantities in these socks. Get 'em quick! #RunForIt

58% Polyester, 40% nylon, 2% Lycra

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Hyper Stripe Crew (Purple & Berry Single Pair)

Hyper Stripe Crew (Purple & Berry Single Pair)

Regular price $14.00
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Gear up for Hyper Stripe Fitsoks!

These CF2 Limited Edition are constructed with performance features for Comfort and Fit. Mesh venting and Flowtek™ channels move moisture and heat away from the foot, while a Max Arch support keeps the socks snug. 

We've created limited quantities in these socks. Get 'em quick! #RunForIt

58% Polyester, 40% nylon, 2% Lycra

sizing chart
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Hyper Stripe Crew (Blue & Yellow Single Pair)

Hyper Stripe Crew (Blue & Yellow Single Pair)

Regular price $14.00
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Gear up for Hyper Stripe Fitsoks!

These CF2 Limited Edition are constructed with performance features for Comfort and Fit. Mesh venting and Flowtek™ channels move moisture and heat away from the foot, while a Max Arch support keeps the socks snug. 

We've created limited quantities in these socks. Get 'em quick! #RunForIt

58% Polyester, 40% nylon, 2% Lycra

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Skully Wool Crew Sock for Runners
Skully Wool Crew Sock for Runners
Skully Wool Crew Sock for Runners

Skully Wool Crew Sock for Runners

Regular price $14.00
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These Limited Edition Skully Wool Running Socks are built with performance features to provide the wearer with superior comfort and fit. Just a few of these features include mesh venting and Flowtek channels, which move moisture and heat away from the wearer's foot even while the Max Arch support keeps the socks snug against the feet.

The Skully Wool Running Socks are constructed from Merino wool. Merino wool is one of the most popular and sought-after materials for socks due to its fantastic moisture-wicking properties. This wool absorbs water and then dries it exceptionally fast, which keeps moisture off your feet more efficiently and effectively than any other sock fiber. Merino wool is especially more efficient than cotton, which absorbs sweat but doesn't move it away from the foot.

Moisture isn't the only thing these Skully Wool Running Socks absorb; they also get rid of foot odor since bacteria that feed on moisture aren't able to live on moisture-less feet. No bacteria = no smelly feet, simple as that!

Arguably, the most important feature of the Skully Wool Running Socks is how lightweight and super-soft they feel against the skin. Merino wool doesn't cause the same itchiness that other wool does, which means that you'll stay surprisingly comfortable through your entire run. Run longer and faster when you run with our wool running socks, featuring a fun design that all of your runner buddies will be jealous of!

If you're ready to take your run to the next level, these socks are for you. Not only do they come with all of the amazing features we mentioned above, but they're also backed by a lifetime guarantee, which means you can say goodbye to your stringy, worn-down, old collection of socks with just the click of a button! Double-check the sock's size chart before ordering to ensure the most perfect fit possible.

Do you need some guidance in the buying process or have any questions about our Skully Wool Running Socks? No problem! Reach out to our customer service team. We've created limited quantities of these socks, so get yours quick!

Made of 58% Merino Wool, 40% Nylon, 2% Lycra.

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Very Merry Running Socks
Very Merry Running Socks
Very Merry Running Socks

Very Merry Running Socks

Regular price $14.00
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Autumn Racer Crew Socks!

These Limited Edition are constructed with performance features for Comfort and Fit. Mesh venting and Flowtek™ channels move moisture and heat away from the foot, while a Max Arch support keeps the socks snug. 

We've created limited quantities in these socks. Get 'em quick! #RunForIt

 98% Nylon, 2% Lycra

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Cinco De Mayo Racer
Cinco De Mayo Racer
Cinco De Mayo Racer

Cinco De Mayo Racer

Regular price $14.00
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Cinco De Mayo Socks!

These Limited Edition are constructed with performance features for Comfort and Fit. Mesh venting and Flowtek™ channels move moisture and heat away from the foot, while a Max Arch support keeps the socks snug. 

We've created limited quantities in these socks. Get 'em quick! #RunForIt

13% Polyester, 85% Nylon, 2% Lycra

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Showing Products 1 - 18 of 18

We believe that socks are never a second-thought accessory. Most of us spend so much time choosing the proper footwear that supports and protects, but then many of us might toss on any old sock and head out for a run. Every aspect of your footwear should work for you, never against you. Sadly, many sock companies are created by those who don't understand the unique characteristics of running well enough to design a sock that works for athletes instead of against them.

Luckily for you, you've just discovered the one company created by two run-addicted brothers who went through the same disappointment in their socks and decided to do something about that, for good. They were tired of seams that made painful blisters, cheap material that wore away after a few uses, poor elasticity, and even worse support. These two brothers dedicated themselves in 2008 to create the best running socks for athletes. And they did!

And we're proud of our innovative designs and technology, but you don't have to take our word for it. On this page is a collection of our best running socks, voted for and chosen by customers all over the world. These are the running socks that have runners of all expertise levels raving.

With breathable, moisture-wicking materials like Flowtek™, Isolwool®, and Sorbtek, foot slippage due to uncomfortable sweat and moisture will practically be a thing of the past. Some of the features you'll find in our best running socks, depending on which design you choose:

  • Vented mesh for even better airflow to keep moisture low and allow evaporation more freely.
  • Crash padding in the forefoot gives more support and cushioning, helps prevention of blistering or further calluses forming for a smoother run.
  • Deep Heel and Arch Support specialized technology fights against sock slippage, keeping them in place
  • Option zone compression construction to ensure a more natural, comfortable fit.
  • Anti-bacterial properties with Merino wool and polypropylene socks along with superior moisture-wicking capabilities
  • Hot or cold wear
  • And a shocking, industry-breaking lifetime guarantee.

Each of our best running socks has been gathered based on customer reviews and purchases, ensuring that you don't have to just take our word for it! Want to know more about our best sellers or any of our athletic performance socks? Feel free to reach out to us via live chat today. Our customer service team would love to assist!