Fun and flattering, even in the mud, the SmartWool Women's Adrenaline Light Micro sock is not only made to fit a woman's foot but to provide serious performance benefits too. Unlike unisex models that are made to accommodate the generally wider male foot, the SmartWool Women's Adrenaline Light Micro sock gently hugs the female foot. But the sock doesn't just hug the foot, it stays in place too. Elastic arch and ankle braces, innovative components of SmartWool's SmartFit technology, support the foot and keep the sock from slipping or bunching mid-run. Additionally, the Contour Flex Zone along the instep further contributes to the snug fit. This special crisscross knit provides maximum ventilation and allows the sock to flex without unwanted wrinkling. Said to be the fastest moisture moving material on the market, the soft SmartWool fiber transports moisture vapor, before it becomes liquid perspiration, away from the skin for comfortable skin to sock contact.