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Castelli Men's Gregge 15 Sock

Mfg PartNum:
$13.99
MSRP:$19.99
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The Men’s Gregge 15 Sock from Castelli combines the the natural insulating and moisture wicking properties of wool and stretch properties of Spandex to offer warm, snug-fitting cycling socks. Other improvements upon its predecessor include a thicker foot bed and longer cuff length for enhanced comfort and coverage.


  • Material: 65% Merino Wool; 30% Spandex; 5% Nylon.
  • Cuff Length: 15 cm.
  • Weight: 78 g.

B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.

S/ML/XLXXL
Shoe Size
35-3940-4344-47   

Cuff Height: Crew 

Fabric Type: Wool / Wool Blend 

Black/Red - S/M

Mfg PartNum: R17560231-2 

Black/Red - L/XL

Mfg PartNum: R17560231-4 

Black/Red - 2X-Large

Mfg PartNum: R17560231-6 

Black/Giro Pink - S/M

Mfg PartNum: R17560291-2 

Black/Giro Pink - L/XL

Mfg PartNum: R17560291-4 

Black/Giro Pink - 2X-Large

Mfg PartNum: R17560291-6 

Red/Savile Blue - S/M

Mfg PartNum: R17560023-2 

Red/Savile Blue - L/XL

Mfg PartNum: R17560023-4 

Red/Savile Blue - 2X-Large

Mfg PartNum: R17560023-6 

Dark Grey/Orange - S/M

Mfg PartNum: R17560343-2 

Dark Grey/Orange - L/XL

Mfg PartNum: R17560343-4 

Dark Grey/Orange - 2X-Large

Mfg PartNum: R17560343-6 

Black/Orange Fluo - S/M

Mfg PartNum: R17560361-2 

Black/Orange Fluo - L/XL

Mfg PartNum: R17560361-4 

Black/Orange Fluo - 2X-Large

Mfg PartNum: R17560361-6 

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Reviewed 3/14/2020
by Matthew A.
San Diego
Overall Rating
Cool weather Sock

I have used this sock on many occasions and it really performed well. If you do cool weather rides, this sock is a must.

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Reviewed 11/29/2018
by Scotty M
Competitive Racer
Salt Lake City Utah
Value Rating
Overall Rating
Great Socks!

Stylish wool in a nice length.

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Reviewed 3/19/2018
by BykeRyder
Cycling Enthusiast
Delray Beach, Fl
Value Rating
Overall Rating
well made.

I use it on my feet. ) Comfortable and well made.

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Reviewed 3/16/2018
by Anonymous
Competitive Racer
Tennessee
Value Rating
Overall Rating
great feel & fit

great feel & fit

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Reviewed 12/1/2017
by summerboy
Cycling Enthusiast
North Carolina
Value Rating
Overall Rating
Very comfortable!

Great fit and comfortable! What more could you want from a quality sock.

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Reviewed 6/5/2018
by Anonymous
Cycling Enthusiast
East Tennessee hills
Overall Rating
Good in cold and hot

Very high quality socks. I am wearing merino all year round now. My feet is warm in the winter and cool in the summer-amazing-and they don'r smell too bad too!

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*Orders received before 3:00PM Pacific time are shipped the same day (Mon-Sat). Orders over $50 are shipped free (USA only, excluding AK and HI). Some exceptions apply. See Shipping for details. 96