Castelli Core Seamless Base Layer SS - White Size:S/M Installation uses RideWrap's pre-cut template

Installation uses RideWrap's pre-cut template format

featuring precision sealed bearings in both pulley wheels for smooth

stays where you put it through heat and sweat

Every flavor uses real fruit and no artificial sweeteners

these socks deliver the soft

Castelli Core Seamless Base Layer SS - White Size:S/M Installation uses RideWrap's pre-cut templateWhat Does the Castelli Core Seamless Base Layer SS in White Do for Your Ride? The Castelli Core Seamless Base Layer SS in White is the warm weather short sleeve foundation layer that works under any summer or spring jersey without showing through as a dark underlayer. Seamless construction removes the shoulder and underarm seams that generate friction over long hours on the bike in an aggressive position, and the snug body mapped fit stays flat