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  • Castelli - Gregge 15 Sock - Black/Giro Pink
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    Castelli - Gregge 15 Sock - Black/Sky Blue
    Castelli - Gregge 15 Sock - Dark Blue/Gray
  • Castelli - Gregge 15 Sock - Black/Giro Pink
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  • Castelli - Gregge 15 Sock - Black/Sky Blue
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Castelli Gregge 15 Sock

30% Off
from $13.96 $19.95

Item #CST00J4

Quantity:
+

Tech Specs

Material:
70% merino wool, 15% nylon, 15% elastane
Height:
crew
Recommended Use:
road cycling
Manufacturer Warranty:
1 year

Gregge 15 Sock

Your rides run the gauntlet from too warm to too cold, and you don't shy away from your bike because of a little drizzle. The Castelli Gregge 15 Sock is constructed of a merino wool blend that naturally regulates temperature and manages moisture—standing up to both perspiration and precipitation. The blend is soft and flexible, and it's constructed with a reinforced toe and heel for extra durability. A thicker footbed cushions your foot against the stiffness of your shoe and improves warmth retention to minimize chills.

  • Cycling socks for all weather conditions
  • Merino wool blend is soft and manages moisture
  • Thicker footbed improves warmth retention
  • Reinforced toe and heel enhance durability
  • Crew height provides coverage
  • Reviews
  • Q & A

Awesome

  • Fit: Runs small

Castelli socks are iconic in the cycling world. Made in Italy, these socks are a work of art. The quality is 10 out of 10.

I own several pairs of Gregge 15 and Castelli Quindici (15) wool socks. Love them both. The only difference I can tell is that the color schemes are different. Castelli officially rates them both for use in 60° F down to freezing weather (with shoe covers!).

Sizing: The sizing chart at the official Castelli website is correct.

Cycling shoe size: 36-39 = S/M
Cycling shoe size: 40-43 = L/XL
Cycling shoe size: 44-47 = 2XL

I wear a 45 in Shimano. The 2XL fit perfect -especially after a few washings (wool does shrink a little). If you wear a size 45+ cycling shoe, definitely buy the 2XL.

Nice sock for colder weather

  • Familiarity: I've put it through the wringer
  • Fit: True to size

I bought these socks when I was buying several pairs at the begining of the riding season. These are great, a little on the thicker side so I like them on cooler days. Stay up well and super comfortable.

Castelli

Socks
 S / ML / XLXXL
US MEN'S SHOE SIZE 4 - 6.5 7 - 10 10.5 - 13
EU MEN'S SHOE SIZE 36 - 39 40 - 43 44 - 47
US WOMEN'S SHOE SIZE 4 - 7 7.5 - 9.5  
EU WOMEN'S SHOE SIZE 35 - 38 39 - 41