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Fox Racing 4in Trail Sock
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Item # FXR01XK

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Item # FXR01XK


Don't suck.

Fox Racing's 4in Trail Socks are, simply put, socks that don't suck. If that's your key criterion for deciding on socks for your dirty trail deeds, then stop reading and start riding.

If you're still here, it's probably because we've either put you to sleep or you're interested in the technical features and finishing details that inform the status of not sucking. In the 4in Trail Sock's case, these details include a weightless body material interrupted with occasional outbreaks of even-airier mesh, blessed with Meryl's anti-hoof-funk Skinlife, and reinforced with a touch of support at the arches.

  • Mountain bike socks that don't suck
  • Synthetic material wicks moisture and ventilates sweaty feet
  • Mesh inserts further enhance cooling
  • Arch support helps keep piggies happy
  • Flat-stitch toe reduces the chances of irritation
  • Meryl's anti-odor tech is your best friend's best friend when you have to share a car on the way home

Tech Specs

polypropylene, Meryl Skinlife, mesh
Recommended Use:
mountain bike
Manufacturer Warranty:
1 year

Size Chart

Fox Racing

Hand Length 7.2 - 7.4in
7.4 - 7.6in
7.6 - 7.9in
7.9 - 8.1in
8.1 - 8.3in
8.3 - 8.6in
8.6 - 8.8in
US Men's Shoe Size 5-8 9-13
How to Measure:
Measure around the fullest part of the hand not including the thumb. If you're right handed, use your right hand and vice versa.
Socks are measured in US Men's shoe sizes.

Reviews & Community


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Keep your feet dryer

  • Familiarity: I've used it several times
  • Fit: True to size

These are great. They let your feet breath like they should. I will second what the other reviewer said about the white pair.

Fox Sox

  • Familiarity: I've put it through the wringer
  • Fit: True to size

Keep my feet cool in hot bike shoes. Don't buy white unless you like brown colored socks.