Castelli Arm Warmer Nano Flex 3G Black

Brand: Castelli

SKU: Select a size

Size: Select a size

SM MD LG XL

$79.00 Full price

$79.00

Club price

$89.99 Full price

REQUEST A PRICE BEAT

Pick up Delivery

Your store:

No location set

No click & collect information available for this location.

Click & Collect:

In Store

Select a size to view stock availability at this store.

$9.90 Not available

Select a size to view stock availability at this location.

Have a Question? Ask an expert on 0800 000 283

Product Details

Description

NANO FLEX ALL-CONDITION WARMERS. Choose Nano Flex for warmers that are great in dry conditions but also give some extra protection and warmth in wet conditions. We invented the category of water-protective thermal fabrics, and Castelli's proprietary Nano Flex is often imitated but never equaled. No compromises for any conditions.

Key Features

Nano Flex fabric for superior water resistance
Excellent warmth without bulkiness
Silicone grippers for secure fit
Reflective details for enhanced visibility
Easy to pack and carry

Specifications

Product Overview

Product

Castelli Arm Warmer Nano Flex 3G Black

Brand

Castelli

Parent SKU

D0YK6YH7

Size SKUs

SM:
MD: CLCA9529010-M
LG: CLCA9529010-L
XL: CLCA9529010-XL

Matrix Barcodes

SM: 8055688934866
MD: 8055688934880
LG: 8055688916411
XL: 8055688934880

Year Model

Winter 2026

Frequently Asked Questions

What is the Castelli Nano Flex 3G Arm Warmers used for?

They’re used to keep your arms warm and protected in variable conditions, offering water resistance and warmth without bulk, ideal for dry days with a bit of wet exposure.

Why choose the Castelli Nano Flex 3G Arm Warmers?

Because the Nano Flex fabric delivers superior water resistance and warmth without adding bulk, with silicone grippers for secure fit and reflective details for visibility, plus packable convenience.

Who is the Castelli Nano Flex 3G Arm Warmers designed for?

Designed for riders facing changing weather who want warmth, protection from moisture, secure fit, and added visibility on every ride.

All-Weather Warmth, No Bulk

Warmth without bulk thanks to the high-performance fabric, plus water resistance to handle damp days. A comfortable, streamlined fit with no extra squeeze.

Secure Fit & Visibility

Silicone grippers keep them in place while reflective details boost visibility in low light. Easy on, easy off with a secure hold.

Packable Protection

Lightweight and easy to pack for quick changes in shifting conditions. Ready to go wherever your ride takes you.

Women's

	Waist	Inseam	Chest	Hip
XS	24.5" - 24.5"	29.5" - 29.5"	31" - 31"	34" - 34"
SM	26.5" - 26.5"	29.9" - 29.9"	33" - 33"	36" - 36"
MD	28.5" - 28.5"	30.3" - 30.3"	35" - 35"	38" - 38"
LG	30.5" - 30.5"	30.7" - 30.7"	37" - 37"	40" - 40"
XL	32.5" - 32.5"	31.1" - 31.1"	39" - 39"	42" - 42"

Men's

	Waist	Inseam	Chest	Hip
SM	31" - 31"	32.2" - 32.2"	36" - 36"	37" - 37"
MD	33" - 33"	32.6" - 32.6"	37.5" - 37.5"	38.5" - 38.5"
LG	34.5" - 34.5"	33" - 33"	39" - 39"	40" - 40"
XL	36.5" - 36.5"	33.5" - 33.5"	41" - 41"	42" - 42"
XXL	38.5" - 38.5"	33.8" - 33.8"	43" - 43"	44" - 44"
XXXL	40.5" - 40.5"	34.2" - 34.2"	45" - 45"	46" - 46"

Youth

	Height
SM (8Y)	4.2' - 4.2'
MD (10Y)	4.6' - 4.6'
LG (12Y)	5' - 5'

Reviews

Improve a product