CASTELLI Nano Flex 3G Arm Warmer - BLACK / S is backordered and will ship as soon as it is back in stock.
EXPRESS SHIPPING
EXPRESS SHIPPING
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For shipments to Italy:
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for orders under €100, Express shipping is available, with an estimated delivery time of 1/2 business days and cost calculated based on order weight
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for orders of €100 or more, standard shipping is free, with an estimated delivery time of 2/3 business days
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for orders of €100 or more, it is also possible to select Express shipping at checkout, which is always paid and with a rate calculated based on weight.
For international shipments, delivery generally takes 2/3 business days. Costs and conditions vary based on order weight and destination country and can be viewed on the dedicated page or directly at checkout.
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CASTELLI Nano Flex 3G Arm Warmer - BLACK / S is backordered and will ship as soon as it is back in stock.
DESCRIPTION
The Castelli Nano Flex 3G Armwarmer is a cycling arm warmer designed for those who ride in variable weather conditions, where a change in temperature or a sudden downpour can turn a pleasant ride into a test of endurance. Unlike traditional thermal arm warmers, this model combines three distinct functions in a single accessory.
Technology and Materials
Castelli's proprietary Nano Flex fabric is constructed with a double-layer structure: the outer surface offers water-repellent resistance that deflects water and reduces wind chill, while the inner layer provides warmth and comfort even in low temperatures. In dry conditions, the material breathes effectively without overheating; when it rains or road spray wets the arms, the water-repellent protection activates, keeping muscles warm and protected from moisture.
Fit and Construction Details
- Non-slip silicone at the top for a stable hold during pedaling
- Seamless construction in areas of skin contact to prevent irritation
- Anatomical profile that follows the shape of the arm in a cycling position
- Compatible with short or fingerless gloves for easy layering
It is the right choice for spring and autumn rides with uncertain forecasts, or for races where conditions change throughout the day. Lightweight and compressible, it easily fits into the back pocket of a jersey when the temperature rises.
- Cycling

