Castelli Thermoflex 2 Armwarmer Black

When it comes to warmers, Castelli Thermoflex offers a soft, luxurious fabric that is both stretchy and warm. Its single-piece construction with flat-lock seams and embossed Castelli wordmark logos make it the perfect choice for dry conditions. However, if you need extra protection against wet conditions, the Nano Flex might be a better option. The dual-sided silicone gripper elastic at the top also ensures that the warmers stay in place without sliding down.