New. No tags. Never worn. Pet and smoke free home. 76% Viscose made from Bamboo 16% Polyester 6% Spandex 2% Nylon How to Care for Your Wellows Wash by hand or machine wash in cold water on the gentle cycle. To preserve antimicrobial and odor-resistant properties, wash your socks with a mild detergent and either air dry or place them in the dryer on a low heat. Do not bleach or use oxy boosters.