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Castelli Pro Seamless 2 Arm Warmer
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Castelli Pro Seamless 2 Arm Warmer

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$29.99
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A Better Arm Warmer

Castelli saw room for improvement in typical warmers on the market, so they set out to make an arm warmer unlike any other. The Pro Seamless 2 Arm Warmer suits a wide temperature range for comfort on any ride.

Typical warmers on the market are made with a nylon and Lycra® blend that tends to hold moisture, but Castelli knew they could get better moisture management with polyester yarn. Working with polyester makes it more difficult to get the right stretch, return, and manufacturing consistency, but in the end, it's all worth it. This mid-weight warmer is great even when not worn since they fold up so small, and the fully seamless construction eliminates itching and chafing.

The Pro Seamless 2 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.

Features:

  • Mid-weight seamless arm warmer
  • Surprisingly warm without causing overheating
  • Unique polyester/nylon/Lycra® blend
  • Fully seamless construction
  • Folds up extra small

B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.

SMLXL2XL3XL
Chest36¼"37¾"39½"41¼"43¼"45¼"
Waist31½"33"34½"36½"38½"40½"
Hips37"38½"40"42"44"46"
Inseam32¼"32.67"33"33½"33.85"34¼"
 
XSSMLXL2XL
Chest32¾"-34¼"34"-36"35½"-37½"38"-40"40½"-42½"43"-45"
Waist25¾"-27¼"27"-29"28½"-30½"31"-33"33½"-35½"36"-38"
Hips34¾"-36"36"-38"37½"-39½"40"-42"42½"-44½"45"-47"

Black - S/M

Mfg PartNum: P4521541010-2 

Black - L/XL

Mfg PartNum: P4521541010-4 

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Reviewed 5/12/2022
by Michigan biker
Competitive Racer
SE Michigan
Value Rating
Overall Rating
Favorite arm warmers.

Castelli nailed it with these seamless leg, knee and arm warmers. They must use a very high loft insulating fiber to knit them. They are super soft, stretchy and very warm for their weight and thickness. Although they look small when you get them, they stretch a lot. And thus far have not lost their shape or rolled down.

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Reviewed 12/30/2021
by Anonymous
Cycling Enthusiast
Plano, TX
Value Rating
Overall Rating
Warm and comfortable

Surprisingly warm and very comfortable. These are short for me (I wear 36-37 in. dress shirt sleeves) -- even shorter than other arm warmers that I wear -- but I still like them when a need something mid/light weight for 50-60 (F) temps

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Reviewed 1/13/2022
by loneoceans
Cycling Enthusiast
Seattle. WA
Overall Rating
0 of 1 customers found this review helpful.
Excellent mid-temperature arm warmers

Over the years I have used Pearl Izumi pro thermal arm warmers. Those are great but I always wanted something that was a touch less warm and more breathable. I found the perfect pair of arm warmers in the Castelli Pro seamless 2. They provide just enough warmth for nippy fall days, but are much more breathable than my pearl izumi ones for hard intervals. Also, I thought that it couldn't get more comfortable than the pearl izumi ones, but these are even more comfortable, and they are very well constructed with a very engineered fit. Highly recommended.

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Reviewed 1/14/2022
by Bruce
colorado
Overall Rating
Arm sleeves vs. Suncreen

I never ride in the sunny and warm season anymore without wearing arm sleeves. It's the best "sunscreen" application there is.

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