Perfect for extending the use of your water resistant shorts or bib shorts, the Castelli Nano Flex 3G Knee Warmers help you to adapt to changing weather throughout your ride. This autumn riding and winter training essential, the were made to help you enjoy every moment on your bike in all conditions. Constructed using a combination of DWR treatment and mechanical heat treatment, the Nano Flex 3G fabric is guaranteed to be water-repellent when the rain inevitably starts.
By pairing flat-lock stitching with a single-seam construction while optimizing stretch, these knee warmers remain low profile without sacrificing freedom of movement. Their compact size is also ideal for storing in rear pockets as conditions improve. Inside the upper side of each warmer are dual-sided silicone grippers to stay where they’re supposed to. The internal fabric has a soft finish making them very comfortable against the skin. To assist in temperature regulation the loft of the fabric has been optimized to trap perfect amounts of air on the skin. Any rider training in varying or unpredictable conditions could benefit from the adaptable power of Castelli’s Nano Flex 3G technology.