Castelli Nano Thermal Cap
Nano Flex 3G fabric delivers high breathability and warmth for riding in single-digit temperatures, making the Castelli Nano Thermal Cap ideal for all but the coldest winter days. The material is stretchy to suit a range of head sizes, and the cap has a drop-down earflap for extra coverage.
- Cap in traditional shape
- Nano Flex 3G fabric for stretchy warmth and water repellency
- Drop-down earflap
- One size fits most design