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Bike Accessories
Components
- Stems
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Gravel
MTB
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Sealants - Tubular Glue - Puncture Repair
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Tubeless Valve
Vedi tutto Tyres →
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e-Bike
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City - Trekking
Fixed
MTB
Gravel
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E-Bike MTB Wheels
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Colnago
Easy
Leonardi Racing
SR Suntour
RT Parts
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SKF
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Nano Flex All-Condition Warmers
Castelli Nano Flex 3G Cycling Armwarmers, Black
Nano Flex All-Condition Warmers
4519529_010-XL
€44.95
€33.71
Save 25%
VAT included
Was €44.95
-25%
Was €44.95
Lowest price applied in the 30 days before the promotion started.
Il prezzo attuale di €33.71
is the lowest price of the last 30 days.
Rating
FREE SHIPPING IN ITALY FROM 129,99 EUROS*
100% SECURE CHECKOUT
N.1 in Italy in the Bike and E-Bike Shops
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.
RATING
Windproofness 3/5
WaterProofness 3/5
Insulation 3/5
Breathability 4/5
LightWeight 4/5
PRODUCT FEATURES
Water-repellent thermal and breathable Nano Flex fabric
Flat-lock stitching with single seam
Double-sided silicone grippers to keep warmers in place
8°-20°C / 46°-68°F
Weight:66 g
4519529_010-XL
Data sheet
- Code
- CASTS25
No customer reviews for the moment.
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Who it is for and how to use it
Ideal for
Cyclists looking for lightweight thermal protection
Designed for cycling when extra warmth is needed without bulk. The 66 g weight and Nano Flex fabric help keep it light and protective.
Rides in variable weather between 8° and 20°C
Suitable for cool or mild conditions when a thermal sleeve with water-repellent behaviour is required. Breathability helps manage comfort during use.
Those seeking a technical accessory for cycling
Indicated for those who want a cycling-specific sleeve with Nano Flex fabric and a lightweight structure. It is a simple solution for combining protection and ventilation.
Use cases
Ideal
Rides in light rain or on damp roads
The Nano Flex fabric is water-repellent and adds protection when the weather changes. It is suitable for riders on wet tarmac or in light rain.
Nano Flex fabric · Water-repellent · Light rain
Very suitable
Mid-season training
Performs well between 8° and 20°C, when thermal support is needed without excess. Breathability helps manage ride intensity.
8°-20°C · Thermal protection · Breathable
Suitable
Everyday use for short rides
The 66 g weight makes it easy to carry and use on quick rides. The lightweight construction is suitable for those who want a compact accessory.
66 g · Lightweight · Short rides
Who it is for
Road cyclist in mid-season
- Looks for
- Wants a thermal, lightweight and water-repellent sleeve for rides between 8° and 20°C.
- Why
- The Nano Flex fabric combines thermal protection, breathability and moisture management in a single accessory.
Cyclist riding in unsettled weather
- Looks for
- Looks for an accessory that helps with light rain and temperature changes.
- Why
- The combination of water repellency and breathability makes it suitable for changing conditions.
Frequently asked questions
What is this sleeve intended for?
It is intended for cycling. The product sheet identifies it as a technical accessory for this discipline.
What fabric does it use?
It uses Nano Flex fabric. The product sheet also lists this as the main material.
What temperatures is it suitable for?
It is indicated for 8°-20°C / 46°-68°F. This range makes it suitable for mid-season rides.
What type of protection does it offer against rain?
It is water-repellent. It offers useful protection in light rain or on damp roads.
Is it suitable when breathability is also needed?
Yes, the product sheet identifies it as breathable. This helps manage comfort better during the ride.
Show all (6)
How much does it weigh?
It weighs 66 g. This is consistent with a lightweight cycling accessory.
Information prepared by the BSA team with the support of AI, based on the manufacturer's specifications.