Castelli Nano Flex 3G Legwarmers Black Apparel

Nano Flex for the ultimate warmer: warm and comfortable in dry conditions, water repellent in damp conditions, and still warm in extreme conditions.

Nano Flex warmers are great in dry conditions but also give some extra protection and warmth in wet conditions. Castelli invented the category of water-protective thermal fabrics, and their proprietary Nano Flex is often imitated but never equalled. No compromises for any conditions.