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Castelli strives for total performance and total innovation, but sometimes they surprise themselves. This NanoFlex fabric behaves just like our Thermoflex fabric in dry conditions, but then provides unbelievable water repellency when it starts raining. Castelli don't claim that it's fully waterproof, but it's the most effective thing they ever made for keeping you comfortable in all conditions. It's just barely short of a miracle.
- Water -resistant NanoFlex fabric
- Same breathability , stretch, and warmth as our standard Thermoflex warmers
- Double-sided Silicone grippers keep the warmers in place
- Great in every possible condition
- Temp range: 14°- 22° C / 57°- 72° F