Flex a little.
Castelli's Thermoflex Arm Warmers are the best choice for cool dry days. Constructed from soft and stretchy Thermoflex fabric, these fleecy warmers insulate from chilly weather while still allowing breathability and flexibility throughout the ride. Features interior and exterior silicone elastic grippers at the top to keep it secured to the rider and overlaying garment. Embellished with a jacquard knit logo at right wrist.