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Fitsok

4.5 (123)

ISW Isolwool® Trail Cuff

Name: Fitsok ISW Isolwool® Trail Cuff - ISW Isolwool® Trail Cuff
Brand: Fitsok
SKU: 45714721439978
Price: 20.0 USD
Availability: InStock
Rating: 4.7789 (93 reviews)

4.5 (1,234)

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Color

Black

Quantity

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 preve...

Reviews

4.8

95 ratings

They fit great and are really comfortable so far. I wear size 13/14 so it's nice to find socks in my size. We'll see how they hold up. The first set of fitsoks I bought in 2010 are still holding up, so I'm hoping they'll last a long time!

Christopher · May 14, 2026

Best socks ever! And they last for years--no holes, no blisters. I ordered size L this time (I wear a 9.5 shoe), and the fit is perfect. Five years ago, I ordered size M, and after washing and drying they became quite snug.

Stephanie · January 30, 2026