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Castelli Merino Light Seta 13 Sock

Sale $11.97 $19.95 40% off

Item # CST00ED

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Item # CST00ED

Streamlined warmth.

Colorful leaves and chilly wind gusts usher in the season for added layers and the Castelli Merino Light Seta 13 Socks. Made from a breathable and exceptionally cozy blend of Merino wool infused with silk for an extra dose of softness, these socks feature a streamlined fit to tuck neatly shoes, booties, and silicone cuffs on tights. A 13cm cuff height provides ample ankle coverage and sits at a trendy yet classic height just under the calf.

  • A cycling sock for chilly days
  • Silk infused Merino wool blend provides breathable insulation
  • Cuff height provides on-trend ankle coverage

Tech Specs

Merino wool with added silk
5 in
Recommended Use:
Manufacturer Warranty:
1 year

Size chart



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

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Failed After Six Washings!

  • Familiarity: I've used it once or twice and have initial impressions
  • Fit: True to size
  • Size Bought: Large

A hole developed in the toe after a few washings. I notified customer service and received a snarky, condescending response about how it was MY FAULT the $20/per socks failed because I did not wash them by hand! Are most cyclists interested in washing socks by hand? So, they are pretty and feel good, but apparently CC believes it's better to stock merchandise that does not stand up to ordinary cyclist use and care patterns, then lecture customers on product care after they fail, than to vet and stock items appropriate for the most rigorous sporting uses, such as cycling. DO NOT PURCHASE!