Wigwam Mens Hot Weather Pt Pro Sock 53% dry-release/31% stretch nylon/12% x2o acrylic/3% stretch polyester /1% lycra spandex Made in US Machine wash Low-cut sock with foot hugging fit Patented moisture control system featuring dry-release keeps feet dry Natural chitosan in x2o acrylic protects against odor and bacteria Dense and durable sole for long lasting comfort Breathable mesh instep keeps you cooler