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Castelli Estremo Shoe Covers

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Item # CST2482

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Item # CST2482


Riding in the cold is hard enough, but add a pair of sopping wet shoes into the mix, and your bike ride just turned into an ambulance ride to the hospital. Well, toe-losing hypothermia might be a bit of a hyperbole, but the lesson remains the same -- you won't be having any fun with freezing feet. That's why Castelli created the wind and water-resistant Estremo Shoe Covers to combat the fun-thwarting attempts of winter.

Made from a micro-injection rubber compound, the Estremo covers are durable, water-resistant, and wind-resistant. They use a thicker, weightier design than you normally see from Castelli, but this is to serve the purpose of all-weather coverage. In fact, the thermal density is so effective that Castelli recommends the Estremo covers for temperatures as low as 23 degrees Fahrenheit.

And while that is impressive, we're equally enthused that Castelli introduced measures to combat the covers from losing their shape during repeated entry and exit. To do this, a waterproof 3M zipper runs from the ankle cuff to the bottom of the heel -- no more stretching and tearing just get your foot in the cover. Castelli also added reflective accents throughout the covers for a touch of added visibility in low-light conditions.

The Castelli Estremo Shoe Covers are available in five sizes from Small to XX-Large and in the color Black/black.

Tech Specs

road cycling shoes
[cover] micro injected rubber
Recommended Use:
cold weather cycling
Manufacturer Warranty:
30 days

Size chart


US Men 7 - 7.5 8 - 8.5 9 - 10.5 11 - 1212.5 - 13
US Women8.5 - 99.5 - 1010.5 - 12
EU39 - 4041 - 4243 - 4445 - 4647 - 48

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Here's what others have to say...


Excellent shoe covers

  • Familiarity:I've used it several times

I have used it under tropical conditions (heavy rain) and they have worked superbly. The material is top quality, very thick and rubbery. They look nice and do what they are supposed to do. Happy cozy and dry-feet ride!


So much better than neoprene

  • Familiarity:I've put it through the wringer

DRY and WARM. That is all there is to say about a bootie in my opinion. I ride regularly in winter down to 35-40 degrees and these keep my toes warm (i wear 2 pair of socks) for a good 2.5 hour ride. Soooo much happier with these then my previous 3 pair combined.

Avg. ride time: 4h 41m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

Not very snug. Not very warm. look cool.

    Not very snug. Not very warm. look cool.


    Try on first

    • Familiarity:I returned this product before using it

    received item in timely fashion, looks well-made, too bulky however?.was looking for a snug fit, particularly around the ankles.


    Very flimsy material

    • Familiarity:I've used it once or twice and have initial impressions

    Very warm, but both ripped after two wears. Definitely would not recommend.


    Buy a size up from the size chart

    • Familiarity:I returned this product before using it
    • Fit:Runs small

    I am a size 8 womens shoe. I bought these as a small according to the sizing chart. They won't go over my cycling shoes, so I need to return them. They seem super nice, warm and water proof though.