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FAST FEET 2 SOCK

For road racing or when you can't wear a Fast Feet TT Shoecover, this sock saves watts.

36,95 € 1 2 3 4 5  5  (2 reviews)

Color: WHITE

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4523029-001

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Product features

  • Castelli's Fast Feet project — for riding in warm conditions
  • The foot portion is based on the Castelli Rosso Corsa Sock for in-shoe comfort
  • Polyurethane grip strip at top to keep sock in place
  • Leg portion constructed with engineered grooved Lycra® to help detach airflow
  • Height: 21cm
  • Castelli's Fast Feet project — for riding in warm conditions
  • The foot portion is based on the Castelli Rosso Corsa Sock for in-shoe comfort
  • Polyurethane grip strip at top to keep sock in place
  • Leg portion constructed with engineered grooved Lycra® to help detach airflow
  • Height: 21cm
  • Weight:53 g
  • Temperature:10°C - 30°C / 50°F - 86°F
  • Fit:Race
    info
    Fit tooltip

What It Is

For road racing or when you can't wear a Fast Feet TT Shoecover, this sock saves watts.
Bluesign®

Bluesign® system partners are committed to applying the Bluesign® system which unites the entire textile supply chain to jointly reduce its impact on people and the environment. The Input Stream Management ensures that Bluesign® approved chemical products and raw materials are used in all steps of the manufacturing process. Substances posing risks to people and the environment are hence eliminated from the very beginning. On-site inspections verify the proper application of such chemical products and raw materials in controlled processes and ensure the responsible use of resources. Committed to applying the Bluesign® system • Responsibly acting party of the textile supply chain • Continuously improving the environmental performance • Focused on a sustainable future Bluesign® system partners are responsibly acting parties of the textile value chain committed to applying the Bluesign® system. They aim to continuously improve their environmental performance and are focused on a sustainable future.

There are lots of so-called aero socks out there. But the Castelli Fast Feet has the development and testing to back up the claim. The few socks that have been tested have probably been tested with a static, non-moving test because it's easier. But a foot is always in motion, so we created a jig that replicates the movement of the lower leg. And we test on actual riders to verify the results. This sock can save 2 watts at 50 km/h.
Reviews

Here is what our customers think about it

5

1

2

3

4

5

2 reviews

非常好

21/03/2024

很棒!

wu andi

1

2

3

4

5

5

FANTASTICHE

29/03/2024

Davvero fantastiche, molto leggere a tal punto che sembra di non indossarle, design meraviglioso e stanno perfettamente in posizione, non si muovono di un millimetro. Le adoro, consigliatissime. E in generale per me Castelli è il top

Damiano

1

2

3

4

5

5

非常好

21/03/2024

很棒!

wu andi

1

2

3

4

5

5

FANTASTICHE

29/03/2024

Davvero fantastiche, molto leggere a tal punto che sembra di non indossarle, design meraviglioso e stanno perfettamente in posizione, non si muovono di un millimetro. Le adoro, consigliatissime. E in generale per me Castelli è il top

Damiano

1

2

3

4

5

5
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