Crafted from a blend of 91% polyester, 5% nylon, 2% metallic, and 2% rubber for optimal comfort and durability. Advanced heat-retention technology to keep your feet warm in cold conditions. Metallic fibers reflect body heat for sustained warmth throughout the day. Moisture-wicking material keeps feet dry and odor-free. Reinforced heels and toes for added durability in high-stress areas.