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Perfect for wet and cold conditions.
Fast drying, water resistant and super warm, the Castelli Nonoflex Arm Warmers are the real deal. Everything you expect from an arm warmer and more with these Nanoflex Arm Warmers. UV Protection, water resistant, fleece lining, breathable, silicone grippers - these arm warmers have everything you want.
Thermoflex fabric with a soft fleece lining for warmth, comfort and breathability.
Nanoflex water resistance technology to help keep you warm.
Improved UV protection.
Silicone arm grippers to keep the warmers in place.