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CastelliEstremo Shoe Cover


Item # CST00UV

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Item # CST00UV

Estremo Shoe Cover

Winter rides never looked all that enticing before. Frozen toes just aren't your thing, and we don't blame you — but neither is the droning whine of the trainer. Castelli aims to make the blustery outdoors a little bit more appealing, with exceptionally warm kits that keep you toasty from head to toe, and the Estremo Shoe Covers take toasty-foot duty very seriously. They're built to handle extreme temperatures, and extreme conditions, rated for temperatures ranging from 4-degrees to 41-degrees Fahrenheit, and packing in GORETEX Infinium membrane for total protection from rain, snow, sleet, and wheel spray. The cover is built from Polartec Power Stretch Pro, which offers a fleece backed lining to trap heat on the inside, while the outer membrane wards off all showers and wind. A high cuff helps seal any gaps between your kit and your shoes, while an AquaGuard YKK zipper prevents moisture from sneaking in the back.

  • Take on the harshest winter rides with toasty toes
  • Polartec Power Stretch Pro fleece traps in heat
  • GORE-TEX Infinium fabric offers windproof water protection
  • Seal out every drop of rain and snow with YKK AquaGuard zip
  • Ultra-durable fabric under foot helps avoid tears and abrasion
  • High cuff seals out icy chills between your kit and shoes
  • Stay visible on frosty rides with reflective accents

Tech Specs
Material[membrane/laminate] GORE-TEX Infinium, [face fabric] Polartec Power Stretch Pro
ClosureYKK AquaGuard zipper
Recommended Useroad cycling
Manufacturer Warranty1 year


Shoe Covers
US MEN SHOE SIZE 5 - 6.5 7 - 9 9.5 - 11 11.5 - 12 12.5 - 14
EU MEN SHOE SIZE 36 - 39 40 - 42 43 - 44 45 - 46 46 - 48
US WOMEN SHOE SIZE 4 - 6.5 7 - 8 8.5 - 11    
EU WOMEN SHOE SIZE 35 - 37 37 - 39 39 - 42    
Diluvio, Belgian Bootie
UNISEX US SHOE SIZE 5 - 6.5 7 - 11 11.5 - 14
UNISEX EU SHOE SIZE 36 - 39 40 - 43 44 - 47


What do you think about this product?


>Rating: 5


I've used it several times
True to size
Size Bought
5` 10"
200 lbs

This are one the nicest shoecovers i own. I have several shoecovers from different brands Assos being one of them, who by the way it's a OVERPRICED and OVERRATED BRAND. But, this particular model by Castelli is perfectly made for winter riding with the Infinium Goretex Shell and Polartec insulation. Better than all my shoecovers, ESPECIALLY ASS O S

>Rating: 5

A welcome addition to my winter riding

I've used it several times
True to size
Size Bought
6` 0"
160 lbs

So first, they are snug. I got them on a size 43 Sidi winter cycling shoe. The first fit will feel like there’s something wrong, but relax, take a deep breath, it fits. It was 31F and windy. The sun just vanished. I was not worried about being cold. It was the last thing on my mind. These are about as good as its going to get. They don’t feel delicate. Although I tend to treat them that way. The fleece is nice. Kind of billowy. Buy these and enjoy your cold rides.


Would these work with gravel/cx shoes like the Sidi Tiger with egg beaters? Thanks! Kirk