Castelli Nano Flex 3G Leg Warmer – Thermal, breathable, and water-repellent
The Castelli Nano Flex 3G Leg Warmer is among the most appreciated cycling leg warmers on the market for those riding in variable weather conditions. Made with the exclusive Nano Flex fabric, these leg warmers offer warmth, breathability, and water-repellent protection, making them ideal for mid-seasons or cold, damp days.
On dry rides, they provide excellent comfort and thermal insulation, while in humid conditions or light rain they effectively repel water, keeping legs dry longer. The fabric's elasticity allows a snug and natural fit without compromising freedom of movement during pedaling.
The flat seams (made with a single stitch per side) minimize skin chafing, enhancing comfort even after several hours in the saddle. Additionally, thanks to the silicone elastic on both sides, the leg warmers always stay perfectly in place, preventing slipping or unwanted folds.
The Castelli Nano Flex 3G leg warmers weigh 167 grams and are designed to deliver maximum performance within a temperature range of 8°C to 20°C (46°F – 68°F), making them an essential piece of technical cycling apparel for spring, autumn, or cool summer mornings.
Main features:
Fabric Nano Flex: thermal, breathable, and water-repellent
Flat seams with single-stitch construction for greater comfort
Silicone elastic on both sides for a secure hold during pedaling
Weight: 167 g
Recommended operating temperature: from 8°C to 20°C (46°F – 68°F)
Ideal for:
Bike rides during the mid-seasons
Humid or variable weather conditions
Road or gravel cycling
Those who seek protection without sacrificing comfort and freedom of movement
