Nano Flex 3G Armwarmer Size:S it falls into the "Ultra

it falls into the "Ultra Distance" category

The base layer stands out in terms of design with an integrated mesh band on the side block stripes

This top is great for your evening rides at the height of summer

The stretch mesh front pocket is great for airing wet clothes on the move (after a quick dip in a mountain stream

Crew is a technical stretch jersey

Nano Flex 3G Armwarmer Size:S it falls into the "UltraChoose Nano Flex for warmers that are great in dry conditions but also give some extra protection and warmth in wet conditions. We invented the category of water protective thermal fabrics, and Castelli's proprietary Nano Flex is often imitated but never equaled. No compromises for any conditions. PRODUCT FEATURES Water repellent thermal and breathable Nano Flex fabric Flat lock stitching with single seam Double sided silicone grippers to keep warmers