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Nano Flex Plus Armwarmer

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Armed and ready.

Castelli's original Nanoflex warmers were a revolution in water-shedding technology, and now they've made them more compact and more comfortable than ever with this Nanoflex Plus version. It offers the same amount of protection from rain and road-spray, but its multi-panel design uses thinner Nano Light fabric on the backside for better stretch and breathability so you don't have to hold anything back when the going gets tough.

Features double-sided silicone grippers at the biceps. Claimed weight is 69 g / pair.

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.

Discount Codes are not applicable to Closeouts.

This product is NOT Eligible for VIP Points.
Ordered by Most Relevant First
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A good buy
by Pads

when you hear Castelli you default to size up. Thats not the case with the nano arm warmer. The medium conforms nicely although I do have thinner arms... true to fit. The material is thick without the heaviness. There is the elastic band material to keep it from slipping.

Reviewed 2/17/2020
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Castelli arm warmers are nice for those cold winter rides
by Bill
Cycling Enthusiast

Nice thin material, well made arm warmer

Reviewed 6/28/2019
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For cooler, wetter days
by Anonymous
Cycling Enthusiast
Orange County, ca
8 of 8 customers found this review helpful.

I use Nanoflex on damp days or when there is rain in the forecast. I think they have a little less stretch to them than the Thermoflex, but they are warmer and provide some nice protection from the wet. 6'-1160 and medium fits me well. They do stay in place nicely despite a little less flex. i may pull them up once or twice on a long rides if i make a stop, whereas the Thermoflex don't budge on me. Or i can just ride through and not worry about them. seem well made, only been through a few washes but no signs of any wear.

Reviewed 1/12/2017
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Great choice for an arm warmer
by Anonymous
Competitive Racer
St. Louis, MO

These do the nanoflex thing really well and are sized reasonably well. I'm an extra-medium kinda guy, and the mediums fit pretty well. Like the nanoflex 2 leg warmers, these are a little long, but that's okay. It took me a bit of time to decide which was left vs. right and how the anatomical cut is supposed to go over the elbow-just remember that when you're on TV people should be able to read nanoflex or castelli.

Reviewed 2/18/2019
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Too large
by Mic
Cycling Enthusiast
San Diego

Unfortunately the XS was too large for my thin arms. They did seem well made but runs large.

Reviewed 2/19/2019
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