Nano Flex arm warmers for all conditions
Choose Nano Flex if you're looking for a pair of arm warmers that are great for dry days, but also provide a little extra protection in the rain.
Castelli has invented the category of thermal fabrics to protect you from water: the proprietary Nano Flex is often imitated, but never reproduced to perfection.
- Water-repellent, thermal and breathable Nano Flex fabric.
- Flat seams.
- Silicone elastic on both sides.
- For temperatures: 8°-20°C / 46°-68°F.
Exclusively engineered by Castelli. They took their thermal fleecy stretch Thermoflex fabric and coat it with millions of tiny nanofilaments to create the most water-repellent fabric finish ever. Drops of water stay as spherical balls on top of the fabric or bounce off the fabric without leaving a trace.