Castelli NanoFlex Knee Warmer Black

Available to Order


Warm breathable knee warmers with Castelli's advanced Nano silicone treatment for fantastic water resistance. Nano Flex fabric behaves just like Thermoflex fabric in dry conditions, but provides unbelievable water repellency when it starts to rain.Castelli don't claim that it's fully waterproof, but it's the most effective thing they've ever made for keeping you comfortable in all conditions. It's just barely short of a miracle.

Water-resistant Nano Flex fabric
Same breathability, stretch and warmth as Castelli standard thermoflex warmers
Great in all conditions
Available In S M L