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Item # CST00EB

Extra insulation.

Some days, all we need is a thin, streamlined pair of socks with just a little bit of extra warmth, but on the really frigid and snowy days, we want all the insulated protection we can stuff into our favorite pair of cycling shoes. On those days, pull on a pair of Castelli Fatto 12 Socks and bask in the cozy, insulated warmth. Made from a mix of soft PrimaLoft and polypropylene yarns with terry cloth to boost those fabrics' already insulative properties, the Fattos will be your best friend through winter training rides, bone-chilling commutes, and overly air-conditioned office environments.

  • Insulated socks keep your feet warm in frigid temperatures
  • Soft fabrics are warm and comfortable
  • 12cm cuff height provides ample ankle coverage

Tech Specs

Material:
PrimaLoft and wool, terry cloth
Height:
12 cm
Recommended Use:
cycling
Manufacturer Warranty:
1 year

Size chart

Castelli

Socks

Castelli Socks
S/M L/XL XXL
US Men's shoe
size
4-7 8-10 11-14
US Women's shoe
size
5-7 8-10 11-12
How to Measure:
For best results, take measurements over your underwear.

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