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.
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Castelli Nano Flex Pro Race Bib Short - Men's
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