Much like yourself, the Smartwool Run Zero Stripe Low Ankle Socks were born to run. Featuring technology and design elements garnered by Smartwool over years of testing and experience, these socks deliver exceptional comfort and performance for running in hot conditions. Merino wool offers unparalleled temperature regulation to help your feet stay cool from start to finish, and the 4 Degree Elite Fit System offers excellent stretch and recovery so your socks don't slip or bunch halfway through your run.