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The Castelli Nano Flex 3G Arm Warmers add that needed touch of warmth when the days get short and chilly, with great protection from cold and the elements courtesy of their Nano Flex construction. Slip them in your jersey pocket when it warms up and put them back on when the sun starts to set.
Water-repellent thermal and breathable Nano Flex fabric
Flat-lock stitching with single seam
Double-sided silicone grippers to keep warmers in place
8°-20°C / 46°-68°F
Weight: 66 g