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More than a sock.

There are socks, and there are Castelli socks. The Logo 9 is much, much more than your dad’s white cotton ankle sock. Made from soft, hollow-core polypropylene, this 9cm sock moves moisture away from your foot efficiently and provides targeted compressive areas to cradle and support the foot.

  • Hollow-core polypropylene
  • Compressive cuff and mid-foot strap

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Here's what others have to say...



  • Familiarity:I've used it once or twice and have initial impressions
  • Fit:True to size
  • Height: 6'1"
    Weight: 181 lbs
    Size Purchased: Medium

Just socks
Nice fabrics


Castelli socks

  • Familiarity:I've used it several times
  • Fit:True to size
  • Height: 6'0"
    Weight: 160 lbs
    Size Purchased: large/extra large

they're socks they fit good they feel good and look good. I wish they were cheaper maybe three pairs for the price but is what it is. Size 10.5 shoe bought the L/XL


Castelli Socks

  • Familiarity:I've used it several times
  • Fit:True to size
  • Height: 5'10"
    Weight: 192 lbs
    Size Purchased: exlarge

I like the socks for short to medium rides. Lets say up to 40 miles. After 40 miles I want my Swiftwick preformance brand. The socks are comfortable and wick moisture as they should.. I personally like a little more compression for long rides. It stops my feet from getting "tingly." Short rides I will grab my Castelly every time.