Castelli Nanoflex Knee Warmers
Now with more flexibility and weather protection, the Castelli Nano Flex+ Knee Warmers are made with the most water-repellent fabric finish ever. Nano Flex fabric combines thermal, fleecy stretch with millions of tiny nanofilaments that allow drops of water to stay as spherical balls on top of the fabric or bounce off the fabric without leaving a trace. Nano Flex Light fabric insert behind the knee is highly elastic for better mobility. Double-sided silicone grippers stay put for a great fit in motion.
- Nano Flex fabric inserts feature a thermal fleecy stretch with tiny silicone nanofilaments for excellent insulation and water repellency
- Nano Flex Light fabric insert combines the thermal, fleecy stretch of Castelli's Thermoflex fabric and coats it with millions of tiny nanofilaments to create the most water-repellent fabric finish ever
- Double-sided silicone grippers stay in position