A warm solution for winter layering these socks are the first step to prep for cold winter cycling. For cycling outdoors in winter layering is everything & staying dry from the inside & the outside is as important as hitting the right note of insulation. The fiber blend used here adds the stretch & moisture management of synthetics to the superior insulation properties of wool. A photoluminescent stripe maintains low-light visibility & a shock of blue across the arch & forefoot is a beacon while searching an otherwise all-black wardrobe. 50% PL 20% PA 22% WO 5% PL 3% EA