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A/C 2 Cycling Cap

3 out of 5 stars
1 Review



Why We Like The Castelli A/C 2 Cycling Cap

The Castelli A/C 2 Cycling Cap fits perfectly beneath our help to provide the comfort we seek on a hot summer day. Its mesh construction is lightweight and well-ventilated to keep things breathable, whether we're chasing KOMs or sipping a post-ride coffee at the cafe.


  • A lightweight cycling cap for hot summer rides
  • Mesh construction provides optimal breathability
  • Curved brim helps block the bright sun
  • Item #CSTZ7OY
road cycling, gravel
Manufacturer Warranty
1 year

Overall Rating

3 based on 1 ratings

Review Summary

1 Stars - 0 reviews
2 Stars - 0 reviews
3 Stars - 1 reviews
4 Stars - 0 reviews
5 Stars - 0 reviews

Fits Small

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Runs smallTrue to sizeRuns large

What do you think about this product?


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3 out of 5 stars

May 28, 2024

one size does NOT fit all

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

My head is 22 3/4" circumference and this cap is so tight I had a major headache 5 minutes into my ride and had to take it off. Manufacturer needs to make more than 1 size or come up with a better elastic system.

Tallis K

Originally reviewed on Backcountry.com