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We set out to make an aero sock that doesn’t compromise on the things that make a great sock.
Castelli Aero Race Pro 20 Rosso Corsa Cycling Socks, White
We set out to make an aero sock that doesn’t compromise on the things that make a great sock.
4526031_001-L/XL
€25.00
€20.00
Save 20%
VAT included
You save €5.00 (20%) on the manufacturer's recommended price
Price history
- Today's price
- €20.00
- Lowest price of the last 30 days
- €20.00
- Manufacturer's recommended price
- €25.00 (20% less)
The price has not been reduced in the last 30 days. The recommended price is set by the manufacturer and is shown for reference only.
FREE SHIPPING IN ITALY FROM 129,99 EUROS*
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N.1 in Italy in the Bike and E-Bike Shops
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.
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 - 35°C / 50°F - 95°F
Fit: Race
Rosso Corsa
Our Rosso Corsa label is only applied to the highest-level products we make. Every thread and fiber, every curve and contour is obsessed about. Rosso Corsa represents a categorical breakthrough in cycling innovation and the meticulous craftsmanship you expect from Castelli’s performance-enhancing apparel.
PRO RIDERS
Garment supplied to the Soudal Quick-Step Team riders.
4526031_001-L/XL
Data sheet
- Gender
- Men
- Material
- Polyamide
- Code
- CASTS26
- Compression
- No
- Season
- All season
- Use
- Cycling
No customer reviews for the moment.
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Who it is for and how to use it
Ideal for
Road cyclist focused on aerodynamics
Designed for those looking for a technical sock with an aerodynamic structure, Race fit and good breathability. The 90% polyamide / 10% elastane blend helps maintain comfort and support during cycling use.
Anyone riding all year round
Suitable for 4-season use, with 1/5 thermal protection and 1/5 water resistance. It is indicated when a lightweight, breathable sock is needed, not a garment for protection against cold or rain.
Cyclist wanting a lightweight technical sock
The 46 g weight and breathable construction make it suitable for those looking for an essential item, with a close feel on the foot and good airflow management.
Use cases
Ideal
High-tempo road rides
The Race fit and aerodynamic construction are designed for road cycling use, where reducing air resistance matters.
Race fit · Aerodynamic structure · Road cycling
Very suitable
Mid-season training sessions
With 4/5 breathability and 1/5 thermal protection, it works well when heat management matters more than insulation.
4 seasons · 4/5 breathability · 1/5 thermal protection
Suitable
Everyday cycling use
The structure is also designed for daily wear, with traditional comfort and the sock staying in place.
Daily use · Comfort · Fit
Who it is for
Experienced road cyclist
- Looks for
- A technical, lightweight sock with a Race setup.
- Why
- The aerodynamic construction, 46 g weight and polyamide/elastane fabric meet performance-oriented use requirements.
All-year-round active rider
- Looks for
- A versatile sock for 4 seasons with good breathability.
- Why
- Breathability 4/5 and thermal protection 1/5 make it suitable when ventilation is the main requirement.
Frequently asked questions
What material is this sock made from?
It is made from 90% polyamide and 10% elastane. This blend is intended to combine comfort and fit.
What fit does it have?
It has a Race fit. This indicates a close-fitting setup, suitable for technical cycling use.
Is it suitable for all seasons?
Yes, it is suitable for 4 seasons. Thermal protection is 1/5, so it is not designed to insulate against the cold.
How much does it weigh?
It weighs 46 g. This is consistent with a lightweight cycling sock.
How breathable is it?
Breathability is 4/5. This helps manage heat during cycling use.
Show all (6)
Does it offer good rain protection?
Water resistance is 1/5. It is not a sock designed to protect against rain.
Information prepared by the BSA team with the support of AI, based on the manufacturer's specifications.