Castelli Nano Flex Leg Warmers

Castelli Nano Flex Leg Warmers. The Castelli Nano Flex Leg Warmers are designed with a stretchy, warm and breathable fabric for dry conditions, plus they're unbelievably water repellent when it starts to rain. Nanoflex fabric has a thermal fleece interior for a soft feel and integrated stretch for muscle support. These leg warmers are constructed to keep you comfortable in all conditions.