Castelli Mens Rosso Corsa 9 Socks - Black Size:2XL Zipper opening at back for

Zipper opening at back for access to jersey pockets

Reflective back tabs

Fits the following Hayes disc brake calipers:

Pinarello Prima Frame and Fork

but we’re quite sure it’s the fastest thing you can buy right now

Castelli Mens Rosso Corsa 9 Socks - Black Size:2XL Zipper opening at back forA PERENNIAL FAVORITE The Rosso Corsa continues to be our best selling sock because its that good. The Meryl Skinlife yarns feature bacterio static silver ions to keep your feet and shoes fresh, the cuff cradles your ankle just right, and the diaphanous web construction keeps your feet cool. Meryl skinlife antibacterial fibers Diaphanous web on top of foot High density elastic midfoot support band Flat seam toe 9cm ankle cuff