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Castelli Nano Flex 3G Knee Warmer

 41,28 Exc. IVA
 20,64 Exc. IVA

The Castelli Nano Flex 3G is the ultimate knee-warmer. Warm and comfortable in dry conditions, water repellent in damp conditions, and still warm in extreme conditions.

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The NanoFlex 3G knee warmers from Castelli are brilliant at adding warmth to knees in cold and wet cycling conditions, adding versatility and weather protection.

If you’re racing or training in mild but often changing conditions, it can be difficult to decide whether to cover the legs or not. The NanoFlex 3G knee warmers take the guesswork out, meaning you get the best of both worlds. With vulnerable knees covered but fresh air cooling the lower legs. For cooler and damp conditions slip them on to provide extra warmth, and wet weather protection should the clouds break. If the sun shows up, they’re easy to take off and stow in a back pocket. They’re the ideal companion to wear with your thermal winter bib shorts.

This 3rd generation of NanoFlex is better than ever thanks to the 3G weave that provides extra warmth, improved water resistance and features a nanotechnology microfilament mechanical water repellent finish combined with a short-chain chemical durable water repellent (DWR) finish for class-leading water resistance.

Castelli’s NanoFlex warmers collection are used by Team INEOS, often copied but never bettered.

Note: The Castelli NanoFlex 3G knee warmers come as a pair.

We ship our products worldwide with Seur & FedEx

Spain Europe North America Asia & Oceania Rest of the World
Standard Free Free €25 €40 €40
Bulky Free Free €80 €80 €80
Bike Free Free €200 €280 €280
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Additional information


L, M, XL, S






Women, Men