Smartwool Hike Light Cushion Crew Socks Natural Extra Large. Formerly known as PhD Outdoor we've updated Smartwool best hike socks to include more sustainable materials with the addition of recycled nylon improved durability updated mesh zones and an even more perfect fit. But don't worry. Smartwool fan-favorite sock technologies aren't going anywhere-offering you the comfort and performance you expect from Smartwool. The crew height also adds extra coverage on the trails and light cushioning on the entire bottom of foot helps keep you comfortable when the ground isn't-helping you to hike on (and on.. and on..) Specifications for Smartwool Hike Light Cushion Crew Socks: Manufacturer: Smartwool Gender: Unisex Age Group: Adults Sock Height: Crew Footwear Type: Socks Activity: Hiking Fabric/Material: 57percent Merino Wool 40percent Nylon 3percent Elastane Features of Smartwool Hike Light Cushion Crew Socks Indestructawool durability technology is intentionally knit into high impact wear zones helping your socks outlast your longest adventures Package Contents: Smartwool Hike Light Cushion Crew Socks Smartwool SW00161410010XL000: Hike Light Cushion Crew Socks Natural Extra Large