The Smartwool Secret Sleuth Grey women's sock is the lowest cut sock which is non-cushioned. It is ideal for ballet silhouettes and other flat shoes. It includes an internal silicone heel gripper, a seamless opening to reduce pressure points, and a supportive arch brace. The ultra light cushioned sock has Shred Shield to reduce wear from toes and Virtually SeamlessT toe for enhanced comfort. It comprises of 60% merino wool, 38% nylon and 2% elastane.