In collaboration with pro cycling team INEOS Grenadiers, Castelli 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 Castelli knew they 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 anticipated, but it was worthwhile. 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.
Features:
Specifications:
Fabric: Polyester, Nylon, Lycra
SPF/UPF: -
Seasons: Cool Weather
Visibility: -
Water Resistant: -
Color: Black
This product was added to our catalog on January 13, 2022
| Weight (lbs) | Short/Jersey Size Relation | |
| S (Women) | 100 - 135 lbs | XS - S |
| S (Men) | 100 - 135 lbs | S - M |
| M | 135 - 155 lbs | S - M |
| L | 155 - 175 lbs | L - XL |
| XL | > 175 lbs | 2XL - 3XL |
Note: All measurements are provided by the manufacturer and may vary depending on how measurements are acquired.
