The Performance Hike Light Cushion Ankle Socks feature Smartwool’s top sock technologies including the 4 Degree Elite Fit System, which delivers a dialled-in, performance orientated fit with flex zones at the ankle joint – for the perfect balance of freedom of movement and long-lasting comfort. Meanwhile, Indestructawool technology is a patent pending construction method which combines the sock’s Merino wool and recycled nylon fabrics in a specific way that advances durability and comfort even further. Perfect for use with low-cut hiking shoes, the ankle socks also feature light cushioning across the entire bottom of the foot – providing impact absorption, and creating a super soft, padded bottom that will help you put one step in front of another, mile after mile.