From the manufacturer

UA TRAIN

UA Train socks are engineered for functionality, durability, and comfort. These versatile styles feature arch support, sweat-wicking and anti-odor technologies.

UA CORE

UA Core socks maximize fit and comfort for any workout. Designed with quick-drying, anti-odor materials to match your performance level.

UA RUN

UA Run socks are built with lightweight yarns that are durable, comfortable, and will go the distance.