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Nano Flex Pro Race Bib Short - Men's

4 out of 5 stars
1 Review


Size Chart


Nano Flex Pro Race Bib Short

Castelli knows we can't always ride when it's 70 and sunny, and that sometimes we must venture out into the rain to get the workout done. The Nano Flex Pro Race Bib Short is an evolution of the shoulder-season favorite Omloop Short, with a brushed fleece lining and water-resistant fabric, the Nano Flex provides the weatherproof layer we need to train in brisk conditions.


  • A pro-level bib for variable weather training
  • Nano Flex 3G fabric repels water, while allowing stretch
  • Long inseam provides additional warmth and coverage to keep muscles firing
  • Mesh bib straps lay flat below jersey or jacket
  • Progetto X2 Air insert provides cushion and comfort for long training days
  • Item #CSTZ7DS
Nano Flex 3G
spring, fall
Progetto X2 Air
Claimed Weight
[large] 7.2oz
Recommended Use
cross-country, gravel, road cycling
Manufacturer Warranty
1 year

Overall Rating

4.5 based on 3 ratings

Review Summary

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

Fits True To Size

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Runs smallTrue to sizeRuns large

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