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Castelli SKU: CLCX6030010-2XL

Castelli Fast Feet 4 Sock

SKU: CLCX6030010-2XL
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$89.90 includes GST
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Please Note

If you are ordering - Bikes - online, please call us to discuss delivery instructions before completing your purchase. Please be aware that bikes cannot be shipped directly to customers in their original packaging; however, we can arrange for them to be on-shipped once prepared. Additionally, please note that an assembly fee applies.

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

PRODUCT FEATURES 

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

TECHNICAL FEATURES

Insulation 1/5

Waterproofness 1/5

Windproofness 1/5

Breathability 4/5

Lightness 4/5 

  • Weight:48 g
  • Temperature:10°C - 38°C / 50°F - 100°F
  • Fit:Race

 


FAST FEET 4 SOCK

There are lots of so-called aero socks out there. But the Castelli Fast Feet 4 Sock has the development and testing to back up the claim. The few socks that have been tested have probably been tested with a static, nonmoving 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 tested it on actual riders to verify the results. This sock can save 2 watts at 50 km/h. The newest version has an updated cuff fit for more comfort and aerodynamic gains.

We use a premium delivery service to deliver all of our bikes to ensure they arrive in the best possible condition. Bicycles from a different warehouse so may arrive separately to any other items ordered. A signature is required to confirm proof of delivery.

All products are sourced from official importers and covered by manufacturers warranty. If you do need to send items back to us please make sure that you retain proof of postage in the event that it is needed.

Your product is covered by a 12 month Warranty or more if you opted for the extended warranty. Make sure you register your product.