The Castelli Nanoflex Arm Warmers use Nanoflex technology that behaves just like Castelli's Thermoflex fabric in dry conditions, but when it starts raining they provide unbelievable water repellency. They are not fully waterproof, but still very effective!
Features
Water-resistant Nanoflex fabric
Same breathability, stretch and warmth as Castelli's standard Thermoflex warmers
Versatile garment for use in varied conditions
Double-sided silicone grippers keep the warmers in place
Weight: 79 g
Temperature range: 10-16°C, 50-60.8°F
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