A BETTER ARM WARMER With Team Ineos 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.
- 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
PRO SEAMLESS armwarmers

A BETTER ARM WARMER With Team Ineos 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.
- 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
To maximise the lifespan of the product, follow the instructions below. If the product has a label with the manufacturer’s maintenance instructions, we recommend they be followed.






A more detailed overview of maintenance instructions for Castelli products can be found here
Free delivery from 75 euros.
For orders under 75 euros, you will be charged 4.95 euros.