Skip to main content

Group road rides are about to start! Are you signed up? Check our Group Ride page here!

Your local bicycle shop of 27 years! Shredding Since 1995!

Castelli NANOFLEX Knee Warmer

Castelli NANOFLEX Knee Warmer
Please select options


Choose 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.

Part Numbers

Option MPN Store SKU
Small Q10538010SM 210000007687
Medium Q10538010MD 210000007685
X-Large Q10538010XL 210000007689