The Castelli Nano Flex thermal knee warmers are made from a lightweight and flexible power stretch fabric. They are a perfect complement for unexpected temperature conditions and feature a brushed interior which will keep you warm and comfortable. Silicon grips are placed at the top of the knee warmers to ensure a secure fit.
- Lightweight power stretch fabric.
- Water resistant fabric.
- Brushed interior for improved warmth.
- Silicon grips at the top.