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DanmarkCastelli Pro Seamless 2 Arm Warmers
Castelli Pro Seamless 2 Arm Warmers
29,01
- Delivery in 2 working days
- Free tracked shipping over 59,00€
- Trustpilot rating 4.6/5
Pros & Cons
Pros & Cons
- These sleeves are knitted entirely without seams; there is no stitching to chafe, even after hours of cycling.
- The polyester/nylon/Lycra blend (78%/15%/7%) regulates moisture better than standard nylon/Lycra warmers, so you are less likely to get sweaty.
- The arm warmers are lightweight (64 g per pair) yet surprisingly warm, without making you overheat.
- They fold down to a very small size for easy storage in a back pocket when you take them off.
- With a temperature range of 10°C to 20°C, the arm warmers are a versatile accessory for the transitional season.
- The arm warmers are not water-repellent; your arms will get wet in light rain or from road spray. If you often ride in changeable weather, you may want to consider a Nano Flex version instead.
Specifications
Specifications
| Brand | Castelli | |
| Season | Spring/Autumn | |
| Waterproofing | Not waterproof |
The Castelli Pro Seamless 2 arm warmers have been developed based on feedback from professional cyclists (INEOS Grenadiers) and is, therefore, slightly different from standard arm warmers. Instead of the usual nylon/Lycra blend, which retains moisture, Castelli uses a polyester yarn here for better moisture management. This yarn is trickier to process to achieve the right stretch and fit, but the result is an arm warmer that feels remarkably light and prevents you from overheating, even when the sun comes out.
These arm warmers are available in black, and in two sizes, S-M and L-XL. If you are unsure about the size, use your jersey size as a guide but bear in mind that the seamless construction follows the contours of your arm very well.
If you are looking for accessories with protection against light rain, take a look at the Nano Flex range from the same brand. Nano Flex arm and leg warmers are water-repellent but do not fold up as compactly as their Pro Seamless 2 counterparts.
These arm warmers are available in black, and in two sizes, S-M and L-XL. If you are unsure about the size, use your jersey size as a guide but bear in mind that the seamless construction follows the contours of your arm very well.
If you are looking for accessories with protection against light rain, take a look at the Nano Flex range from the same brand. Nano Flex arm and leg warmers are water-repellent but do not fold up as compactly as their Pro Seamless 2 counterparts.
Seamless construction
The Pro Seamless 2 sleeves are knitted in one piece, without any seams. This prevents pressure points and chafing, and ensures you can barely feel you are wearing them.
Polyester/nylon/Lycra blend (78% / 15% / 7%)
Castelli has deliberately chosen to use a polyester yarn here instead of the standard nylon/Lycra blend. As polyester manages moisture better, the arm warmers are less likely to feel damp during exercise. The downside is that the fabric is not water-repellent, so they offer no protection against the rain.
- The arm warmers are available in S/M and L/XL, not in individual sizes S, M, L or XL.
- Pair them with a short-sleeved jersey – the seamless top cuffs keep them securely in place.
- In wet conditions, pair them with a lightweight rain jacket, or go straight for a water-repellent option such as Nano Flex arm warmers.
1 pair of Pro Seamless 2 arm warmers (two sleeves)
- Wash the arm warmers on a gentle cycle and leave to air-dry to preserve the stretch of the seamless knit.
- When it gets warm, simply put them in a back pocket; they fold down to a very small size thanks to their low weight.
- If you are expecting rain, pair them with a light rain jacket or opt for water-repellent Castelli warmers because these Pro Seamless 2 arm warmers are not waterproof.
Which size arm warmers should I choose?
The Pro Seamless 2 arm warmers are available in two sizes: S-M and L-XL. Go by your usual jersey size: If you wear an S or M jersey, choose S-M; if you wear an L or XL, choose L-XL. Thanks to the seamless, stretchy construction, the fit is slightly more generous than with sewn arm warmers.
Are the Castelli Pro Seamless 2 arm warmers water-repellent?
No, they are not water-repellent; your arms will get wet in light rain or from road spray. They are primarily designed for dry, chilly mornings when you warm up quickly. If you often bike in changeable weather, consider a Castelli Nano Flex version.
For what temperature range are the Pro Seamless 2 arm warmers suitable?
These arm warmers are suitable for temperatures ranging from 10°C to 20°C. Below that, it’s better to wear thicker thermal arm warmers; above that, they will soon be too warm.
What is the difference between the Pro Seamless 2 and the Castelli Nano Flex arm warmers?
Both are arm warmers from Castelli, but with different purposes. The Pro Seamless 2 is ultra-light, has no seams and folds up compactly, but offers no protection against rain. The Nano Flex range is water-repellent and, therefore, a better choice for changeable weather, but doesn’t pack down quite as compactly.
Do these arm warmers stay in place while cycling?
Yes, the seamless construction is stretchy enough to follow the contours of your arms without slipping down or pinching. The arm warmers do not have silicone grippers like some other arm warmers, but the knitted fabric naturally provides a good grip.
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| Season | Spring/Autumn | Summer / Spring/Autumn | Summer / Spring/Autumn | Spring/Autumn |
| Waterproofing | Not waterproof | Not waterproof | Not waterproof | Not waterproof |
| Size (manufacturer) | L - XL / S - M | S / M / L | S / M / L / XL | S / M / L |
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