Castelli's Nano Flex water-repellent fabric is one of those fabrics that seems miraculous. On a dry day it's as warm and breathable as our normal Thermoflex fabric, but when it rains the water just runs off, thanks to the five-phase nanotechnology treatment. While it's not 100% waterproof, it's the best solution Castelli ever tried for staying comfortable in any conditions. On a wet day, pair the Claudio bibshorts with a set of our fleecy and water-repellent Nano Flex knee or leg warmers and you'll feel the same warmth as with a pair of tights.
Your VIP Benefits apply! Triathlon gear prices are too low for additional discounts to be combined.
Questions about this or any other triathlon gear? Count on your expert to personally help by calling 1.800.600.9895! Your triathlon product is supplied and shipped by Nytro Multisport within 3-5 business days via Standard Ground Shipping to physical street addresses within the continental U.S. only.
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