Targeted cushioning provides lightweight comfort in these crew-length running socks designed with Indestructawool™ technology and a dialed-in fit. These socks are built to last whether you run on a track, sidewalk or trail. Merino wool naturally resists odors and helps regulate body temperature for comfort Mesh zones for added breathability 4 Degree™ elite fit system for a dialed-in, performance-oriented fit Indestructawool™ technology with extended durability zones Virtually Seamless™ toe for enhanced comfort Merino wool/recycled nylon/nylon/elastane Machine wash, tumble dry Made in the USA of imported fabric