Sometimes your winter socks are so thick that the resulting blood restriction when squeezed into your cycling shoes actually negates any warmth you stood to gain. By knitting PrimaLoft® microfiber insulation into their Primaloft 13 Sock, Castelli has made a winter sock that provides excellent insulation without unnecessary bulk. They knitted it with a 20% silk blend for a luxuriously soft feel as well, and the reinforced heel and toe ensure you can keep wearing this fabulously warm sock for many rides to come.
13 cm cuff. Available in multiple colors.
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