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Fast Feet 4 Sock

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Fast Feet 4 Sock

The Castelli Fast Feet 4 Sock for road racing or when you can't wear a Fast Feet TT Shoecover, this sock saves watts.

  • Fir: Race
  • Weight: 48 g
  • Temperature range: 10°C - 38°C / 50°F - 100°F
  • Castelli’s Fast Feet project — for maximum aerodynamics
  • Foot portion based on 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

The Castelli Fast Feet 4 Sock for road racing or when you can't wear a Fast Feet TT Shoecover, this sock saves watts.

  • Fir: Race
  • Weight: 48 g
  • Temperature range: 10°C - 38°C / 50°F - 100°F
  • Castelli’s Fast Feet project — for maximum aerodynamics
  • Foot portion based on 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
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From $19.50

Original: $65.00

-70%
Fast Feet 4 Sock

$65.00

$19.50

Description

The Castelli Fast Feet 4 Sock for road racing or when you can't wear a Fast Feet TT Shoecover, this sock saves watts.

  • Fir: Race
  • Weight: 48 g
  • Temperature range: 10°C - 38°C / 50°F - 100°F
  • Castelli’s Fast Feet project — for maximum aerodynamics
  • Foot portion based on 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