Castelli Fast Feet 2 Socks
Castelli Fast Feet 2 Socks

Castelli Fast Feet 2 Socks

Regular price$56.18
Tax included.

  • Free shipping on all orders over $100!
  • Low stock - 3 items left
  • Inventory on the way

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

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.

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
  • Weight: 49gm
  • Temperature: 10°C - 30°C
  • Fit: Aero

Delivery Options

Free Delivery On Orders Over $100.00

$6.00 flat rate for orders under $100.00

Expected Delivery Times

North Island: Delivered in 1-2 business days 

South Island: Delivered in 3-4 business days


Items in stock will be ready to collected within 1 hour of your order being placed.

Some items now ship from off-site locations so will be ready for collection within 2 working days.

Pick up times

8.30am - 5.30pm Monday-Friday 
9.30am - 2.00pm Saturday

Please wait to receive an email stating your order is ready to be collected.

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