Castelli Nano Flex 3G Legwarmers Black

Brand: Castelli

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Size: Select a size

MD LG XL

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Product Details

Description

Nano Flex for the ultimate warmer: warm and comfortable in dry conditions, water repellent in damp conditions, and still warm in extreme conditions.

Nano Flex warmers are great in dry conditions but also give some extra protection and warmth in wet conditions. Castelli invented the category of water-protective thermal fabrics, and their proprietary Nano Flex is often imitated but never equalled. No compromises for any conditions.

Key Features

Water-repellent thermal and breathable Nano Flex fabric
Flat-lock stitching with single seam
Double-sided silicone grippers to keep warmers in place

Specifications

Product Overview

Product

Castelli Nano Flex 3G Legwarmers Black

Brand

Castelli

Parent SKU

74MWMPIM

Size SKUs

MD: CLCL9577010-M
LG: CLCL9577010-L
XL: CLCL9577010-XL

Product Features

Weight

166g

Frequently Asked Questions

What is the Castelli Nano Flex 3G Legwarmers used for?

Castelli Nano Flex 3G Legwarmers are designed to keep you warm and comfortable in cool to cold rides, offering warmth, breathability, and water-repellent protection as conditions shift.

Why choose the Castelli Nano Flex 3G Legwarmers?

They blend warmth with water resistance and a secure fit, so you stay comfortable without needing to change layers mid-ride.

Who is the Castelli Nano Flex 3G Legwarmers designed for?

They’re ideal for riders who train in cool, variable, or damp conditions and want reliable warmth plus protection without bulk.

Water-repellent warmth for damp to dry conditions

The fabric delivers thermal comfort that’s breathable, keeping you warm without overheating. It stays effective from dry to lightly damp days.

Secure, race-ready fit with silicone grips

Double-sided silicone grippers hold the legwarmers in place during rides, preventing unwanted slippage. No need to constantly adjust while you’re pedaling.

All-weather performance, no compromises

Nano Flex delivers warmth, stretch, and water resistance in one layer. Perfect for variable conditions where you want reliable protection.

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"