Choose Nano Flex for warmers that are great in dry conditions but also give some extra protection and warmth in wet conditions. We invented the category of water-protective thermal fabrics, and Castelli's proprietary Nano Flex is often imitated but never equaled. No compromises for any conditions.
- Water-repellent thermal and breathable Nano Flex fabric
- Flat-lock stitching with single seam
- Double-sided silicone grippers to keep warmers in place
- 12°-20°C / 54°-68°F
- Weight: 89 g