Over 25 years ago, SMARTWOOL invented the original Merino wool performance sock—the Classic Hike, which remains mostly unchanged and certainly unmatched in comfort. But today, it’s getting upgraded. The Classic Hike Light Cushion socks by SMARTWOOL start with recycled nylon—creating a more sustainable (but just as comfortable) sock. They’re also made with responsibly sourced, ZQ-certified wool that was grown with a focus on ensuring environmental, social, and economic sustainability while also taking the best care of Merino sheep. This is a cozy, capable classic that is never going out of style.