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The Castelli Duran Socks are so classy looking that it's almost a shame they'll be covered by your shoes. The classic black and white socks with Castelli's traditional script logo across the foot have a great post-war feel, and the bands at the ankles strengthen the motif. The Duran Socks may look classic, but the material and construction belie their origin. The mesh tops are designed allow air to move in from your shoes' vents, while the rest of the socks are structured for maximum durability.

The Duran socks use a polyester and spandex blend that works to function in two ways. The polyester is designed to wick moisture away from your skin so they'll keep your feet dry as well as cool. The spandex works to keep the socks snug against your foot. Castelli knits them with a mid-foot band to help keep the socks in place as you twist and strain against the pedals.

The Castelli Duran Socks are available in Black or White. They come in Small/Medium and Large/X-Large sizes. The Small/Medium will fit 35-39 sized feet, and the Large/X-Large will fit sizes 39-45.

  • Polypropylene blend wicks moisture and keeps feet from overheating
  • Ankle height will get you past the fashion police without any trouble
  • Elastic mid-foot band keeps the socks in place while you're hammering
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Not bad, just a tad tight

  • Familiarity:I've put it through the wringer

I got the small/medium thinking they would be a good in the middle. Definitely more on the small than medium size. Very nice and tight though, been holding up for several yrs now still.

Good but not as good as the mortirolo

    I got these for free. There are comfy and stylish but sad to say I'm deducting 1 star away because my feet simply do not feel as cool as it was when I wore the mortirolo socks. Since they were free, I'm not complaining too much about it.

    3-pack a steal

      I ordered one 3-pack to test the fit, then quickly ordered a second. I don't recall ever paying so little for a cycling sock (watch Bonktown for a real steal). Best bang-for-buck socks I've ever purchased. My size 11 US feet are comfy in the L/XL.

      One of my favorite Socks

        I bought a 3 pack of these socks off bonktown, and I wear them all the time on my road bike. Pros: They are very breathable, dry quickly, light and not at all bulky. Cons: Since they are so light, durability may become an issue. I've already put a toe through a pair on a hard ride. They stripes on top aren't my favorite either, but they're kinda retro if that's your thing.

        One of my favorite Socks

          I bought a 3 pack of these socks off bonktown, and I wear them all the time on my road bike. Pros: They are very breathable, dry quickly, light and not at all bulky. Cons: Since they are so light, durability may become an issue. I've already put a toe through a pair on a hard ride. They stripes on top aren't my favorite either, but they're kinda retro if that's your thing.