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With INEOS Grenadiers we set out to make a better seamless arm warmer.
Castelli PRO Seamless 2 Cycling Armwarmers, Black
With INEOS Grenadiers we set out to make a better seamless arm warmer.
4521541_010-S/M
€27.95
€20.96
Save 25%
VAT included
You save €6.99 (25%) on the manufacturer's recommended price
Price history
- Today's price
- €20.96
- Lowest price of the last 30 days
- €20.96
- Manufacturer's recommended price
- €27.95 (25% less)
The price has not been reduced in the last 30 days. The recommended price is set by the manufacturer and is shown for reference only.
FREE SHIPPING IN ITALY FROM 129,99 EUROS*
100% SECURE CHECKOUT
N.1 in Italy in the Bike and E-Bike Shops
With INEOS Grenadiers we set out to make a better seamless arm warmer. Others on the market are made with a nylon/Lycra® blend that tends to hold moisture, but we knew we could get better moisture management with a polyester yarn. Working with polyester makes it more difficult to get the right stretch, return and manufacturing consistency, though. It took a year longer than we thought, but we're all glad we stuck with it. These warmers are a pro rider favorite because they're crazy light and they're extremely warm for their weight, yet even in milder conditions you don't overheat. They're so stretchy you hardly feel them on, yet when you take them off they occupy a fraction of the space that normal warmers would take in your pocket.
WHAT IT IS
Wide temperature range combined with high-stretch seamless comfort makes this our most versatile warmer.
RATING
Windproofness 3/5
WaterProofness 1/5
Insulation 3/5
Breathability 3/5
LightWeight 4/5
PRODUCT FEATURES
Mid-weight seamless arm warmer
Surprisingly warm without causing overheating
Unique polyester/nylon/Lycra® 78%/15%/7% blend
Fully seamless construction
Folds up extra small
4521541_010-S/M
Data sheet
- Gender
- Men
Women - Material
- Other
- Code
- CASTS25
- Season
- All season
- Use
- Cycling
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Who it is for and how to use it
Ideal for
Cyclists looking for light warmth
Designed for those who want thermal protection 3/5 with low weight and no excessive bulk.
Those who ride in 4 seasons
Suitable for extended use throughout the year, with a balance of insulation and breathability.
Cyclists who want comfort and low bulk
Suitable for those looking for seamless construction and an accessory that takes up little pocket space.
Use cases
Ideal
Rides in changeable weather
It handles mid-range conditions well thanks to thermal protection 3/5 and breathability 3/5.
Thermal protection 3/5 · Breathability 3/5 · 4 seasons
Very suitable
Cool starts or cold returns
It provides warmth without feeling heavy, useful when the temperature drops but a very bulky garment is not needed.
Warmth · Lightweight · Cycling
Very suitable
To keep in a pocket during the ride
The seamless construction and the ability to pack down into a small space make it practical to carry at all times.
Seamless · Compact · Comfort
Suitable
Use on short or medium rides by bike
It is consistent with general cycling use, with a good balance between comfort and protection.
Cycling · Comfort · Breathability
Who it is for
Cyclist looking for an essential technical arm warmer
- Looks for
- A lightweight, warm and seamless accessory for cycling.
- Why
- The blend of polyester, nylon and Lycra® focuses on comfort, elasticity and temperature management.
Sportsperson who wants a low-bulk garment
- Looks for
- A arm warmer that is easy to stow and suitable for multiple seasons.
- Why
- It folds down very small, with a balanced level of protection and breathability.
Frequently asked questions
Is this arm warmer suitable for cycling?
Yes, the intended use is Cycling and the listed discipline is cycling.
What material is it made from?
It is made from a polyester/nylon/Lycra® blend 78%/15%/7%.
Does it have seams?
No, it has a fully seamless construction, designed to increase comfort.
In which season is it used?
It is suitable for 4 seasons.
What level of thermal protection does it offer?
Thermal protection is 3/5, so it offers balanced warmth for cycling use.
Show all (7)
How breathable is it?
Breathability is 3/5, with a good balance between comfort and moisture management.
Is it waterproof?
Waterproofness is 1/5, so it is not designed as a waterproof garment.
Information prepared by the BSA team with the support of AI, based on the manufacturer's specifications.