The Hike Light Cushion Crew socks from Smartwool offer the performance and comfort of Merino wool. Previously known as PhD Outdoor, Smartwool has updated its best hiking socks with nylon, enhanced durability, updated mesh zones, and an even better fit. But don't worry; the fanfavorite sock technologies remain intact, providing you with the comfort and performance you expect from Smartwool. The crew height offers extra protection on the trails, and the light cushioning across the entire footbed ensures you stay comfortable even when the ground isn't as firm—so you can keep hiking. The 4 Degree Elite Fit System features a bielastic construction for quicker flex and recovery of the entire foot. These bands are located at the ankle, arch, and both the upper and lower instep. The Indestructawool technology provides excellent comfort combined with durability. The Virtually Seamless technology smooths out the toe seams to ensure ultimate fit and comfort in the shoe. This technology is found in Smartwool's performance and everyday socks.