The elastic arch support of the Classic Full Cushion Solid Crew hiking socks ensures a secure fit while hiking. But that's not all you'll love about this classic pair. A flat-knit seam in the toe area offers better comfort in the shoe and the nylon is extremely durable. Best of all, this model is made from responsibly sourced, incredibly soft merino wool with ZQ certification. These socks will keep your feet comfortable on all your hiking trips.