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CastelliUPF 50+ Light Leg Sleeves


Item # CST00CI

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  • Black, S ($49.95)
  • Black, M ($49.95)
  • Black, L ($49.95)
  • Black, XL ($49.95)
  • White, S ($49.95)
  • White, M ($49.95)
  • White, L ($49.95)
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Item # CST00CI

UPF 50+ Light Leg Sleeves

The Solare fabric used in Castelli's UPF 50 Plus Light Leg Sleeves is a synthetic blend with a polyester base, so the Sleeves wick moisture and breathe like a more efficient layer of second skin. Unlike the actual skin they protect, though, the UPF 50 Plus Leg Skins protect against the harmful rays of the sun. Cyclists tend to spend a lot more time under the sun than other endurance athletes, so the added bit of protection is especially appreciated in the saddle. The Leg Sleeves' efficient moisture management also mean they keep you warmer in cool conditions, so they're ideal companions to pack in a pocket during long, July climbs and pull on to ward off speed wobbles caused by shivering during high-speed, chilly descents. Your legs are your engines; treat them well.

  • Leg sleeves for riding in sunny, cool weather
  • Solare fabric wicks away moisture and breathes well
  • UPF 50+ defends you against the sun's harmful rays
  • Fast-drying fabric minimizes chills in cool weather
  • Form-fitting design layers easily and won't bunch

Tech Specs
UPF Rating
Recommended Use
Manufacturer Warranty
1 year


Arm & Knee Warmers





Rider Weight

99.2 - 132.3lb

(45 - 60kg)

99.2 - 132.3lb

(45 - 60kg)

132.3 - 154.3lb

(60 - 70kg)

154.3 - 176.4lb

(70 - 80kg)



Short/Jersey Size XS - S S - M S - M L - XL 2XL - 3XL
Short/Jersey Size:
Take your typical cycling short or bib sizing for comparison.

View more Leg Warmers

    What do you think about this product?


    >Rating: 5

    Nice and light

    True to size
    Size Bought
    5` 5"
    163 lbs

    I bought this leg sleeve on white and black for this coming summer, they feel good and are very light, good quality, can’t wait to wear them.

    >Rating: 4


    I've used it several times

    I ordered the black version size large. I am 6’1” with slender legs. They fit well enough but think a Medium might have been better and provided more compression. I actually have used them less as sun screens but more of a warmer during some “chilly” rides (high 40’s to low 50’s). Not thermal but just enough protection from the chill and wind to keep my legs comfortable. Sunny and over 70 these black ones really got hot. I like the versatility as they are very compact to carry and are very easy to put on or take off as weather conditions change. If using primarily as sun screens I would opt for the white ones. Regarding the zippers mentioned by another reviewer, I had no problem with them and do not effect comfort although I agree they are not really necessary.

    >Rating: 5

    Perfect for poison oak protection

    I've put it through the wringer
    True to size
    Size Bought
    large (although I have pretty thick legs)
    5` 11"
    160 lbs

    I live in Los Angeles area and was looking for a light leg sleeve to provide cover against poison oak that I would get on my legs almost every time I ride on tight single track around here. I have had these Castelli sun sleeves for over a year now, use them once or twice a week and they are still working great -- never slip or anything, and very breathable. I would highly recommend and will probably buy another pair.

    >Rating: 2

    Good fabric but zippers

    I returned this product before using it

    I have used Castelli knee length sun protection sleeves for years and they are great. I thought I would get the full length but they have zippers. Who needs zippers in a sun protection sleeve? Zippers make them uncomfortable. Will be returning for the pearl izumi without zippers.

    P.I. would not stay up on my thighs, Castelli does.