Introducing Nike's newest running socks. Designed to give you a locked-in fit, they feature advanced sweat-wicking technology and strategically placed cushioning and support. This means you can forget the fit and focus on your miles. Plus, there are no tails on the inside, helping to ensure you can run with zero distractions. Design: Nike Dri-FIT ADV levels up our sweat-wicking technology with advanced cooling and zones of breathability to help you stay dry and comfortable Asymmetrical arch support hugs your arch just right. Circular split heel provides a secure, locked-in fit Zonal mapping provides comfort in high-wear areas like the Achilles and beneath the laces. Micro-cushioning in the heel and toe adds comfort Additional Details 50% nylon/45% polyester/5% spandex Machine wash