Castelli

Castelli Fast Feet 4 Cycling Socks

Name: Castelli Fast Feet 4 Cycling Socks
Brand: Castelli

1 retailer offer · prices checked daily

Best price today

£28.00

at Tredz

Sizes in stock: XXL

Buy at Tredz

Opens Tredz’s site. You pay them directly, and they deliver and handle returns. Always confirm price and stock there.

The current best price for Castelli Fast Feet 4 Cycling Socks is £28.00 from Tredz. The lowest price we have recorded is £22.00 on 12 August 2026.

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 they created a jig that replicates the movement of the lower leg. And they 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.

Where to buy

RetailerStockPrice

Tredz
Size XXL
In stock
£28.00
In stock
Buy at Tredz(opens in a new window)

Some links are affiliate — we may earn a small commission at no cost to you. It never changes the order. Always confirm on the retailer’s site before buying.