If you want one of the best fitting and performing arm warmers on the market, then you’re looking at it. Key to its performance is the ThermoFlex fabric which is a fleece lined fabric that’s been designed to trap a layer of warm air against your skin on colder days.
In fact, Castelli recommend their use in 5 - 15C temperatures, meaning you can head out on a very cold day and still be comfortable.
Fit is also spot-on thanks to an anatomical shape with a kink built in to the elbow section. The fabric is also very stretchy, yet fits close to the arm so there aren’t any creases. A gripper at the top helps to keep the warmer in place.
Thermoflex fabric for soft, warm, stretchy comfort.
Micofiber gripper elastic at top.
Good quality arm warmers, comfortable, look smart (particularly the yellow wrist band). Snug fit so maybe size up. Tredz were great. I'd ordered by by by by by were very quick to replace replace exceptionally helpful. Very pleased with products and Service.
Good quality arm warmers, comfortable, look smart (particularly the yellow wrist band). Snug fit so maybe size up. Tredz were great. I'd ordered by by by by by were very quick to replace replace exceptionally helpful. Very pleased with products and Service.Close review
These arm warmers are perfect. I bought small, and when I took them out of the bag Ithey looked like they'd be too short for my 49cm arms (pit to wrist), but they're just right. Nice and warm, and feel good against the skin.
These arm warmers are perfect. I bought small, and when I took them out of the bag Ithey looked like they'd be too short for my 49cm arms (pit to wrist), but they're just right. Nice and warm, and feel good against the skin.Close review
Recently taken up cycling this summer - all I can say everyone needs a pair of arm warmers ! They have been the best but this summer . I'm 6 ft 3' , 92Kg with a 36' sleeve - size xl just the fit , very comfortable and great design Rode in the rain the other day - although they got wet they kept me warm and dried quickly when the sun came out . Best of the best arm warmers - go treat yourself !
Recently taken up cycling this summer - all I can say everyone needs a pair of arm warmers ! They have been the best but this summer . I'm 6 ft 3' , 92Kg with a 36' sleeve - size xl just the fit , very comfortable and great design Rode in the rain the other day - although they got wet they kept me warm and dried quickly when the sun came out . Best of the best arm warmers - go treat yourself !Close review
Use the Castelli size chart to find the best fit for you.
Note: Castelli size their clothing small. To ensure an optimal fit it is recommended you go up one size, compared to your normal cycle clothing size.
Please note, all size information is provided as a guide - if you're unsure or need any further assistance you can call us on 01792 799508 ... we're happy to help!
What is a base layer?
A base layer is the top you wear next to your skin and under everything else while cycling. It’s soft, absorbent and wicks away sweat.
Who needs a base layer?
Anyone cycling for any distance or length of time will really benefit from the extra comfort of a base layer.
What are the choices?
You can opt for a long sleeve base layer in winter or a short sleeve one in warmer weather. Most are made from fast-wicking polyester, but there are also some in warm, soft merino wool or anti-bacterial bamboo.
What should I buy with it?
Base layers are simple and essential, but you can get some really technical options too. There are some with silver woven in to make them more resistant to odour and compression base layers which are said to help muscle recovery.
See our Layering for cyclists guide for more.
We are committed to offering fast and free delivery, whether you're ordering bikes, accessories or clothing. Our standard delivery service is FREE to mainland UK, regardless of the size and value.
Please note: bulky products and bikes shipped to outlying UK regions are excluded from free shipping - Click here for more info.
To take the stress out of Christmas you can shop with us until the 21st of December, and although we're not predicting heavy snowfall, we recommend placing your orders before midday for guaranteed Christmas delivery.
Our guaranteed Christmas delivery applies to all products featuring this icon
Please choose your preferred option/size for each product to be sure it qualifies for guaranteed Christmas delivery. If you have any queries regarding our Christmas deliveries or have any questions, then please call our Customer Service team on 01792 799508.
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It’s easy to return a product with our 365 day, hassle free returns.
We will give you a full refund or exchange on any item that is returned to us unused/unfitted, in a resaleable condition and in its original packaging (where possible).
For hygiene reasons, we cannot accept returns of facemasks, undershorts or underwear if the item has been removed/unsealed from its original packaging.
For more information please visit our Returns & Warranty page.