Introducing Nike's newest running socks. Designed to give you a locked-in fit, they feature sweat-wicking wool fabric and strategically placed cushioning and support. This means you can forget the fit and focus on your miles. Advanced Breathability:Nike Dri-FIT ADV levels up our sweat-wicking technology with advanced cooling and zones of breathability to help you stay dry and comfortable. Snug and Secure Fit:Asymmetrical arch support hugs your arch just right. Circular split heel provides a secure, locked-in fit while the wool blend material has optimal stretch and fabric recovery. Step with Confidence:Zonal mapping provides comfort in high-wear areas like the Achilles and beneath the laces. Micro-cushioning in the heel and toe helps add comfort. [] Product Details:65% wool/18% nylon/13% polyester/4% spandex. Machine wash. Imported. Reflective details. Not intended for use as Personal Protective Equipment (PPE). Style: IF2507; Color: Black/Dark Smoke Grey/Light Smoke Grey; Size: M; Gender: Unisex; Age Group: Adult | Nike Running No-Show Wool Socks (1 Pair) in Black, Size: Medium | IF2507-010