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Item # CST0098

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Item # CST0098


As all serious cyclists know, every thread of clothing you wear can affect your performance -- right down to the socks. The Castelli Men's Low Boy Bike Sock helps prevent foot fatigue with its midfoot support band. Meryl SkinLife antibacterial fibers resist odor buil- up so you don't pass out and fall off your bike at the 50-mile mark. The Low Boy Sock's silverized ankle cuff also fights bacteria and wicks away moisture.

  • Antimicrobial Meryl Skinlife fabric
  • Midfoot support band
  • Antimicrobial silverized cuff

Tech Specs

[sock] Meryl Skinlife
Recommended Use:
Manufacturer Warranty:
1 year

Size chart


US MEN'S SHOE SIZE 4 - 7 8 - 10 11 - 14
US WOMEN'S SHOE SIZE 5 - 7 8 - 10 11 - 12

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Great socks s/m

    Finding socks that are lightweight & fit small feet are defiantly a challenge. I purchased every pair I could get my hands on for my wife who wears a 5.5 / 6 shoe. These are perfect for her.

    Nice and thin, but with thick logo

    • Familiarity: I returned this product before using it

    I like that this sock is nice and thin. Only 19.7 grams!

    What I didn't like about it was that the logo in the midsection of the foot is thick and puts unnecessary pressure on a band of the middle foot. After testing for just 2 minutes, the logo left an imprint on my foot. This logo is purely cosmetic but it reduces the comfort of the sock.

    Nice and thin, but with thick logo

    Great socks, so very thin.

      Awesome socks. They're so thin I can actually feel the breeze on my feet while riding. I ordered one pair but will get a few more.

      The only reason I don't give them 5 stars is that they still show above my SIDI bike shoes. I was hoping they were low as in no-show. Just my personal preference and absolutely not a knock on the socks.

      I have some smartwool lowcut socks (something like the Ultralight micros) that are completely covered by my SIDIs which I found less comfortable than my higher castelli winter socks because the tongues of the shoes cut into my feet every so slightly. But if you like noshow, maybe you could check those out

      Great Socks

        Great Socks. thin and cool and seem to wick away moisture. they work great for me. i had a problem with my feet getting hot with cotton socks. these socks have helped that by about 90% at best guess.

        Like tanned ankles?

          A little looser on the foot than the Rossa Corsa socks, but with the low profile you can tan your ankles when cycling. :)

          How many come in a package? Is this just...

          How many come in a package? Is this just for 1 pair of socks???

          How can I determine size of soxs - what...

          How can I determine size of soxs - what does L/Xl designate?

          S/M: 36-42 EuroL/XL: 43-46 EuroXXL: 47-48 Euro