Thorlos Women's  LTH Light Hiking Thick Padded Crew Sock 65% Thor-Wick COOL Polyester, 15% Nylon, 14% Thor-Lon Acrylic, 6% Elastic Made in US Turn Inside Out-Machine Wash-Use Liquid Fabric Softner Exclusive Cool MX and Thor Lon blend wicks moisture better while providing moderate cushioning in the ball and heel to protect against blisters Women's specific design includes extra stretch yarn in the ankle, a smaller heel pocket and a custom toe box for better fit