Castelli Nano Flex Kneewarmer 3G 2025 cycling knee warmers

New version of the Castelli Nano Flex 3G knee warmers, an even more comfortable model. The Nano Flex 3G features highly stretchable Nano Light fabric at the knees, which helps to improve protection and, above all, comfort.

The Nano Flex 3G Kneewarer 3G knee pads are made with the famous Nano Flex fabric, whose resistance to moisture and cold is well established. Note that Nano Light inserts have been incorporated into the flex zones for greater comfort and an optimised fit. There are also non-slip silicone prints to ensure a perfect fit during exercise.

Technical features:

- Warm, moisture-resistant Nano Flex fabric
- Stretchable Nano Light inserts in flex zones
- Non-slip silicone prints
- Recommended temperatures: 12° to 20°C
- Weight: 89 grams (pair)
- Sizes: S / M / L / XL
- Colour: Black

Castelli size guide

Castelli sizes run small, so if you are between sizes, we recommend choosing the larger size.