ISW Isolwool® Trail Cuff (3 pair pack)

$25.00

Title

Medium (shoe size 7-9)

Large (shoe size 9-11)

X-Large (shoe size 12-14)

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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

Customer Reviews

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John W.

I've hiked the Colorado trail in a pair of these . I've also hiked exclusively in fit soc for the last 4 years. Love them I have never got a blister or any other issue with my feet since wearing them. For me best sock on the market for hiking. Ive had darn tuff, and others some issues with all, that's why I wear these Thankyou

Sandra S.

Love these wool socks. I’ve tried at least seven brands of wool socks, and these are my favorites. They are the best! Please make more colors and styles in wool for dedicated buyers like me!

Greg W.

Comfortable, high quality socks! The Isolwool is a perfect blend for performance. Your feet stay cool and dry. Nice cushion too.

Jay P.

Love the fit and feel of these socks, I'm on my feet most of the day and these keep my feet comfortable. Thank you for a great product.

Sue S.

Love your socks!!! Customer service is amazing!!!

Jonathan B.

Great socks, more medium weight than thin. Very soft, good feel. May not be the best for really hot weather or heavy exercise, but I'll definitely be wearing these most of the year!

Gary J.

These are my favorite socks. I mostly get them from races, but the time came to buy my own. Customer support has been really fantastic.

Rebecca B.

I bought my husband a package of Fitsok’s for the comfort. After we received them we bought another package because of the 40% off. Nice fit.

Rebecca B.

First time I purchased Fitsok on line...they came on time and exactly what we ordered. Thanks and we will be back.

John H.

Very comfortable

Stephen O.

Fit is perfect and while just a few runs in they are my new go to sock!

Crispin M.

Great fit.....Great Price.....Great socks!!!

Grant M.

Well made socks

Robert B.

Perfect.

Brad K.

Great quality product. Warm and comfortable merino wool is warm even when wet. Great customer service and support!

Shaun D.

Fitsok have been my favorite socks for looks and feel for the last year so I upgraded to these wool versions for warmth plus smell and sweat control on my motorcycles and bicycles. So far so good!

Timothy E.

I was looking for a good wet weather, winter running sock, and these are definitely great for that. Made it 1 1/2 hours this morning in wet shoes & 35 degree weather and my feet were still relatively warm thanks to these socks. I have a similar pair from a different brand, but these are much softer and kept my feet way warmer.

Joseph W.

The wool blend is perfect for all seasons. Finally have enough pairs to be wearing them every day!

Steve M.

Fitsok keeps up the great work with comfortable, high quality socks in the XL size to properly fit bigger feet. I like the CF2 for summer and am trying these Isowool socks for cooler weather and so far not disappointed. When cycling they breathe but they also are warmer due to the wool when not moving, just right!

Scott B.

Great socks!! My feet get cold fall and winter and so far these have worked out great.

Mark C.

I love these socks but they are not wearing well. They are developing holes in the heels and at the ankle seams with less than a year of wear less than once a week. Mark Campeau Hydroelect@aol.com

Sean M.

Just the perfect amount of cushion, support, and strechiness. (is that a word??) Love these socks for trail running.

Todd S.

Wear these socks almost every day, even in Summer. Great fit and extremely comfortable.

tom s.

Absolutely the best sock. I wear them for every activity. Recommend you do, too.

eric m.

My feet just found a new home. These will be my everyday socks for sure! Comfort, breathable, and supportive with a hint of swanky mode!!

Michael C.

I'm very happy with Fitsok Trail cuff socks. They are just the right size and feel great! I had one defective sock in my first order and sent a photo of the defective sock to Fitsok customer service. Fitsok then sent me 3 more pairs of socks at no charge. The Fitsok customer service is second to none!

James P.

I just reviewed the same socks in a different color. I like the comfort, fit, and that they are wool. I especially like that they are made in USA.

Jeffrey M.

The most comfortable and well tailored sock. It is the right height for all seasons and great for a very active person,

Laura H.

Don’t get me wrong, I love the socks; however, since the website shows the socks to be black with green stitching, it would have been nice to have received that color combo.

Ralph A.

Absolutely love them!!

Stephen E.

Best made

Dan S.

These are the most comfortable socks I've ever owned. I wear them for running, hiking and pickleball. They perform well and hold up better than any other sock I've tried. My sock drawer is now 100% Fitsock.

Chris K.

Love love love these socks

james g.

Very comfortable. You feel the wool. Love that m.

Kris V.

LOVE these socks! They keep your feet so warm while out running in the winter!

Todd H.

Best sock made!

eric h.

I especially like the way the sock cuff fits and stays snug.

Todd Z.

love these socks! will never wear anything else again! have used them running, daily use and in the weight room. FANTASTIC

Jeff L.

Good fit, nice warm socks

Galen D.

I have worn Fitsoks for years. They are snug, yet comfortable. They are the best wearing socks, even without shoes, I have ever had.

Marty M.

I ordered these socks due to needing to replace my older running socks. I have had the opportunity to run and walk with these socks on and I am truly impressed. I really do appreciate the ventilation on my feet, the comfort that they provide while I am being active. I normally wear a size 9.5 shoe, and got myself the medium size which works great for my feet. I would highly recommend these socks.

Robert S.

Ordering was easy,quite happy with the socks

John E.

Perfect fit and not scratchy at all.Very comfortable

Steve H.

I have 12 pair of these. This last pack was for a friend. I wear them for road running, trail running, and to play pickleball. They are comfortable wet or dry. I ran in them wet this summers times. I recommend them to anyone I know.

MADE IN THE USA + LIFETIME GUARANTEE

Fitsoks on runners Standing on a mountain

2 Brothers Both Runners

We make these runderful socks in our family owned sock factory located in the foothills of North Carolina. We bring 3 generations of innovation, quality and passion into every pair.

Made for Movement

Our socks are engineered for people on the move. We blend the best fibers & innovated construction techniques to optimize performance.