Latest Price: £22.75 – SAVE: 35% RRP:35

Castelli Nanoflex+ Armwarmer review

We want to ensure that whether you’re spending £10K on a new lightweight race bike, £2 on a cycling water bottle or £22.75 on Castelli Nanoflex+ Armwarmer, that you’re getting the very best you can get for your money. In today’s Castelli Nanoflex+ Armwarmer review we’re going to look at why it scores 9.3/10 in our review and why we recommend it over many of the other 31 products in the Arm Warmers category. We’ve started by giving you a top level score for each of the key areas when it comes to reviewing these products, these scores include a quality score, price score, review score and an overall score.










Castelli Nanoflex+ Armwarmer reviews

See customer reviews at Chain Reaction Cycles:

View 22 Reviews

Castelli Nanoflex+ Armwarmer Specification

Castelli Nanoflex+ Armwarmer specs

Castelli Nanoflex+ Armwarmer
Feature 1

Main Material: 84% Nylon, 16% Elastane

Other Arm Warmers found with this feature: 2

Feature 2

Elbow Material: 86% Nylon, 14% Elastane

Other Arm Warmers found with this feature: 1

Feature 3

Water-resistant thermal and breathable

Other Arm Warmers found with this feature: 1

Feature 4

Nano Flex fabric

Other Arm Warmers found with this feature: 1

Feature 5

Nano Light insert on back for extra stretch, bringing better fit and comfort

Other Arm Warmers found with this feature: 3

Feature 6

Double-sided silicone grippers to keep the warmers in place

Other Arm Warmers found with this feature: 1

Feature 7

Temperature Range: +8° – +22°C

Other Arm Warmers found with this feature: 1

Feature 8

Weight: 69g (size small)

Other Arm Warmers found with this feature: 1

Spec 1

Colour: Black

Other Arm Warmers found with this spec: 2

Spec 2

Clothing Size: S, L

Other Arm Warmers found with this spec: 1

Spec 3

Gender: Male

Other Arm Warmers found with this spec: 1

Spec 4

Age Group: Adult

Other Arm Warmers found with this spec: 1



Number of Reviews


Review Score

4.8 / 5

Average score in category: 4.5


  • . This Castelli Nanflex Armwarmer provides you with a more comfortable fit thanks to its Nano Light insert. Nano Flex fabric behaves just like Thermoflex fabric in dry conditions, but provides unbelievable water repellency when it starts to rain Features: Main Material:¬†84% Nylon, 16% ElastaneElbow Material: 86% Nylon, 14% ElastaneWater-resistant thermal and breathableNano Flex fabricNano Light insert on back for extra stretch, bringing better fit and comfortDouble-sided silicone grippers to keep the warmers in placeTemperature Range: +8¬∞ – +22¬∞CWeight: 69g (size small)Technologies: Nano Flex Fabric: Exclusively engineered by Castelli. NanoFlex consists of Thermoflex fabric with millions of tiny silicone nanofilaments on the surface to create the most water-repellent finish ever. In wet conditions, water droplets simply bounce off the fabric without leaving a trace. The silicone nanofilaments also trap a layer of air between them for excellent insulation and prevent water from soaking through to the fabric underneath Buy¬†Castelli Clothing¬†from Chain Reaction Cycles, the World’s Largest Online Bike Store.
  • Product codes: 8055688331528
  • CS165770102-S

No matter what type of bike product your buying, from the simple accessories through to the full setup of your custom built road bike, there are lots of important considerations that you should take into account, especially when you’re shopping online and unable to test the product first. This is especially true when you’re buying products like Arm Warmers.

Our aim is simple, help you get the very best products for your budget. Whether that’s Castelli Nanoflex+ Armwarmer or an alternative, we’ll do our best to find you unbiased, genuine customer reviews to help you make your decision. We’ve found 31 different products in the Arm Warmers category at Chain Reaction Cycles and we’ve also managed to find 360 products from Castelli (although only 3 of the 360 are in the Arm Warmers category).

Our first piece of advice is for you to spend some time really getting to know what it is you’re looking for. An important feature for one person might be totally pointless and irrelevant to you, so get a good idea of what you want and need from your Arm Warmers. Note down this list of key features that your product must have, that way when you’re comparing alternatives you have a starting point to decide whether one product meets your needs or not.

Price is the next and probably one of the most important factors of a purchase, so it’s really worthwhile spending a bit of time analysing the price of Castelli Nanoflex+ Armwarmer and seeing how it stacks up against those offered by different brands or even other alternatives from Castelli. Below we’re going to get into the detail of Castelli Nanoflex+ Armwarmer to help you see how the prices stack up.

We start this price analysis by looking at the price you can expect to pay for Arm Warmers. There are 31 different products available at Chain Reaction Cycles, and of those 31, the average price is £24.08. There’s quite a variance in price in this category too with the lowest priced product we found at £7.5 and most expensive was £38.

The next stage we went on to, was to look at the price of products from the brand: Castelli. The average price was £71.33 and we found that the price varies right from as little as £7 up to £340 with Castelli products.

And finally we thought it would be good to give you an idea of Castelli products that appear specifically in the Arm Warmers category. So you can see that the price of Castelli Nanoflex+ Armwarmer at £22.75 is great value considering the average price of Castelli Arm Warmers is £26.08 and the price varies from £17.49.

It’s also worth bearing in mind that we managed to find Castelli Nanoflex+ Armwarmer during our price scan of several cycle retailers, for the amazing price of £22.75 which represents a £12.25 or 35% saving against RRP. If you think Castelli Nanoflex+ Armwarmer ticks all of your boxes in terms of quality and features then it’s more than likely going to be a winner bearing in mind the price.

Castelli Nanoflex+ Armwarmer Reviews

Reviews are obviously a key part of the buying process when buying any cycle gear, and that goes for Arm Warmers too. Reading reviews if going to be the closest insight you get into how good Castelli Nanoflex+ Armwarmer is, without actually trying or buying it. Over at Chain Reaction Cycles we managed to find 22 reviews scoring it 4.8 out of 5. That’s a great result considering the price and quality and the fact that it’s a product made by Castelli. In fact when you consider those points and combine it with the fact that the average review score in the Arm Warmers category is 4.5 and the average score of products from Castelli is 4.4 it’s a steal. And actually, if you look specifically at products from Castelli in the Arm Warmers category the average review score is 4.8.

That’s why you can see it was easy for us to give Castelli Nanoflex+ Armwarmer such a high overall score of 9.3 / 10. It seems to have the perfect combination of features, quality and price making it a great all-rounder.

So our last piece of advice that we can offer is to take your time reading plenty of reviews now, you can see that there are 22 reviews for Castelli Nanoflex+ Armwarmer which score it 4.8, so it’s really worth spending a few minutes reading through lots of these to see what the key advantages or dislikes are. It will really reassure you when you come to buying online.

If you do go on to buy Castelli Nanoflex+ Armwarmer or in fact any of the other Arm Warmers, we would love to hear from you. Sharing your views will really help us to write more comprehensive reviews and we will share these thoughts with customers just like you that are looking to read reviews before they commit to buying.