Versatile Styles For Wherever The Day Takes You—Shop Now
Home Page

Detail Images

Current Color

Castelli Nano Flex Pro Race Bib Short - Men's


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

Tech Specs

What do you think about this product?


>Rating: 5

Perfect for cool weather!

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

Great shorts! They are a bit odd at first because of their length (they extend to just over the knees) and because they don't have a gripper, but they really don't ride up, and not even when I wear leg warmers with them. Pad is super comfortable. They're a bit tight to start, but once you break them in, they fit nice and snug (or aero ;). I wear them alone down to maybe 9C (without windchill), and then add leg warmers to go colder, which bottoms out, for me, at 5C (fair-weather, I know...). Beyond that, I don't know how they hold up. NOTE: That's "true to CASTELLI" size, since Castelli usually runs small. But I'm a Medium in every other pro-level Castelli short I own, so it's consistent within Castelli sizing.