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Castelli

Aero Race Pro 20 Sock

Regular price $49.90
  • Castelli Sock Aero Race Pro 20 White - 2/XL
  • Castelli Sock Aero Race Pro 20 White - L/XL
  • Castelli Sock Aero Race Pro 20 White - S/M

Castelli Size Guide

Tops
Men's Sizechart

HOW TO MEASURE

Grab a tape measure, write down the measurements and compare with our size chart for the right size. For best results, take measurements over your underwear. If your measurements fall between sizes, we suggest that you size up for a better fit.

1. CHEST

Holding the tape horizontally measure under your armpits with your arms relaxed at sides, around the fullest part of your chest.

2. WAIST

Holding the tape horizontally measure around your natural waistline, keeping the tape a bit loose.

 

 Bottoms
Men's Sizechart

HOW TO MEASURE

Grab a tape measure, write down the measurements and compare with our size chart for the right size. For best results, take measurements over your underwear. If your measurements fall between sizes, we suggest that you size up for a better fit.

1. HIPS

Holding the tape horizontally measure around the largest part of your hips keeping the feet close together.

2. INSEAM

Using pants that fit well, measure the crotch seam to the ankle bone

 

Gloves
Men's sizechart 

1. CIRCUMFERENCE OF THE HAND

To determine the correct size, measure the circumference of your hand with a tape measure or a length of string and a ruler.

 

Socks
Men's Sizechart

1. SHOE SIZE

Sock sizes are based on shoe size.

 

Shoe covers
Men's Sizechart

1. SHOE SIZE

Shoecover sizes are based on shoe size

 

Tops
Women's Sizechart

HOW TO MEASURE

Grab a tap measure, write down the measurements and compare with our size chart for the right size. For the best results, take measurements over your underwear. If your measurements fall between sizes, we suggest that you size up for a better fit.

1. CHEST

Holding the tape horizontal measure under your arms, around the fullest part of your chest.

2. WAIST

Holding the tape horizontally measure around your natural waistline, keeping the tape a bit loose.

 

Bra
Women's Sizechart

HOW TO MEASURE

Grab a tape measure, write down the measurements and compare with our size chart for the right size.

1. BREAST

Measure directly over the widest point of the breast, making it adhere to the body, making sure it is well aligned on the back.

2. UNDERBUST

Stand in front of a mirror wearing an unpadded bra. Pass the tape measure under your breasts keeping it as snug as possible, making sure it is well aligned on the back.

 

Bottoms
Women's Sizechart

HOW TO MEASURE

Grab a tape measure, write down the measurements and compare with our size chart for the right size. For best results, take measurements over your underwear. If your measurements fall between sizes, we suggest that you size up for a better fit.

1. HIPS

Holding the tape horizontally measure around the largest part of your hips keeping the feet close together.

2. INSEAM

Using pants that fit well, measure the crotch seam to the ankle bone

 

Gloves
Women's Sizechart

1. CIRCUMFERENCE OF THE HAND

To determine the correct size, measure the circumference of your hand with a tape measure or a length of string and a ruler.

 

Socks
Women's Sizechart

1. SHOE SIZE

Sock sizes are based on shoe size.

 

Shoe covers
Women's Sizechart

1. SHOE SIZE

Shoecover sizes are based on shoe size.

 

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Castelli Aero Race Pro 20 Sock
Description

PRODUCT FEATURES

Traditional sock comfort with raised aero ribs

Developed to provide everyday aerodynamic gains

Durable and breathable construction

90% polyamide / 10% elastane mix for optimal comfort and fit

20 cm cuff

TECHNICAL FEATURES

Insulation 1/5

Waterproofness 1/5

Windproofness 1/5

Breathability 4/5

Lightness 4/5 

  • Weight:46 g
  • Temperature:10°C - 38°C / 50°F - 100°F
  • Fit:Race

 

FAST, SOCK, ALWAYS.

We set out to make an aero sock that doesn’t compromise on the things that make a great sock. Working with expert Italian knitters and state-of-the-art machinery, we created a structure that combines smooth and textured zones to control airflow and reduce drag — without sacrificing comfort or fit. The result is a sock that stays up, feels great, and delivers aero performance equal to ribbed Lycra® cuffs — with the bonus of true everyday wearability.
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