
Castelli Pro Seamless Arm Warmers
Castelli Pro Seamless Arm Warmers
- Select size and colour for availability
The Details
The Pro Seamless Arm Warmers from Castelli have been developed alongside World Tour riders so you know that these are up to the job. These arm warmers are excellent for those in between days when its a little chilly but not quite thermal long sleeve jersey weather (weather that happens a little too often in the UK!).
The Pro Seamless Arm Warmers uses a polyester fabric which is warm yet does not absorb moisture meaning your arms don't get soaked and stay soaked if it rains. The pros love their warmth-to-weight ratio as well as their comfort.
- Mid-weight fleece
- Polyester, nylon, lycra blend
- Fold up small
- Temperature comfort range 10˚C – 20˚C
Our Verdict
Arm warmers are essential for UK riding and these Castelli Pro Seamless arm warmers are an excellent example with their mid-weight thickness to warm without causing overheating.
Industry Reviews

A very lightweight set of arm warmers, ideal for those who want extra protection when it's chilly, without too much pocket bulk once warmed up. The fabric provides warmth without causing overheating
Key Specifications
- Mid-weight seamless warmer developed with World Tour team riders
- Warm without causing overheating
- Unique polyester, nylon, Lycra blend (78%, 15%, 7%)
- Folds up extra small
- Temperature comfort range of 10˚C – 20˚C
- Weight 64g (Pair - approx)
Sizing Information
Castelli Warmers Unisex Size Guide
Size | Short/Jersey Size | Weight (lbs) |
S (Women) | XS - S | 100 - 135 |
S (Men) | S - M | 100 - 135 |
M | S - M | 135 - 155 |
L | L - XL | 155 - 175 |
XL | 2XL - 3XL | > 175 |
Delivery
Parts, accessories and clothing delivery - FREE over £30
Delivery for parts, accessories and clothing is free over £30 and £2.99 below that. We have a selection of premium delivery services available, including next day, AM, Saturday, timed delivery and local pickup services. Mainland UK only, some remote and off-shore areas or areas of Scotland may incur a surcharge. Delivery options and lead time estimates will be provided in checkout.
Click & Collect
Our Click & Collect service offers all the benefits of shopping online, combined with an award-winning retail experience in one of our stores. Simply order your items, select Click & Collect and pick up your item at a time that's convenient for you - our stores are open 7 days a week. Best of all, the service is completely free.
Reviews
Your Questions Answered
The Pro Seamless Arm Warmers from Castelli have been developed alongside World Tour riders so you know that these are up to the job. These arm warmers are excellent for those in between days when its a little chilly but not quite thermal long sleeve jersey weather (weather that happens a little too often in the UK!).
The Pro Seamless Arm Warmers uses a polyester fabric which is warm yet does not absorb moisture meaning your arms don't get soaked and stay soaked if it rains. The pros love their warmth-to-weight ratio as well as their comfort.
- Mid-weight fleece
- Polyester, nylon, lycra blend
- Fold up small
- Temperature comfort range 10˚C – 20˚C
- Mid-weight seamless warmer developed with World Tour team riders
- Warm without causing overheating
- Unique polyester, nylon, Lycra blend (78%, 15%, 7%)
- Folds up extra small
- Temperature comfort range of 10˚C – 20˚C
- Weight 64g (Pair - approx)
Arm warmers are essential for UK riding and these Castelli Pro Seamless arm warmers are an excellent example with their mid-weight thickness to warm without causing overheating.
Sizing Information
Castelli Warmers Unisex Size Guide
Size | Short/Jersey Size | Weight (lbs) |
S (Women) | XS - S | 100 - 135 |
S (Men) | S - M | 100 - 135 |
M | S - M | 135 - 155 |
L | L - XL | 155 - 175 |
XL | 2XL - 3XL | > 175 |

A very lightweight set of arm warmers, ideal for those who want extra protection when it's chilly, without too much pocket bulk once warmed up. The fabric provides warmth without causing overheating
Parts, accessories and clothing delivery - FREE over £30
Delivery for parts, accessories and clothing is free over £30 and £2.99 below that. We have a selection of premium delivery services available, including next day, AM, Saturday, timed delivery and local pickup services. Mainland UK only, some remote and off-shore areas or areas of Scotland may incur a surcharge. Delivery options and lead time estimates will be provided in checkout.
Click & Collect
Our Click & Collect service offers all the benefits of shopping online, combined with an award-winning retail experience in one of our stores. Simply order your items, select Click & Collect and pick up your item at a time that's convenient for you - our stores are open 7 days a week. Best of all, the service is completely free.