Castelli Premio W Socks For Comfort and Cooling Choosing the right socks for your ride doesn't have to be difficult. The Castelli Premio W Socks are premium socks for comfort and cooling on both long-distance and intense rides. They feature a multiple-structure knit to get the right performance in every part of the sock. The socks also have a compressive midfoot support band, asymmetrical construction to mirror the shape of the foot, and cushioning pad under the ball of the foot. Features Meryl Skinlife yarns with antimicrobial silver ions to reduce odors Multiple-structure knit to get the right performance in every part of the sock Asymmetrical construction to mirror the shape of the foot Sizing Size Small/Medium Large/Extra Large EU Size35 - 3839 - 41US Size5 - 78 - 11 | Castelli | Premio W Sock Women's | Size Large/extra Large In Black