Castelli's most popular leg warmer for seven years just got an upgrade with the Castelli Nanoflex+ Leg Warmer. NanoFlex fabric provides comfort, insulation and breathability alongside a level of water-resistance that is certainly appreciated in light showers. A new addition to these leg warmers is the Nano Light inserts on the back.

Building on a legacy of performance, the Castelli Nanoflex+ Knee Warmer boosts comfort and insulation while also offering water-resistance. NanoFlex fabric provides comfort, insulation and breathability alongside a level of water-resistance that is certainly appreciated in light showers. A new addition to these knee warmers is the Nano Light inserts on the back.

The Castelli Nanoflex+ Arm Warmer upgrades and improves on Castelli's most popular arm warmer design. Constructed primarily from NanoFlex fabric, these arm warmers provide light, comfortable and flexible insulation. On top of this comes the water-resistant properties that are more than capable of standing up to a light shower.