Merino - Very warm high quality wool, naturally antibacterial properties to keep you fresher for longer Moisture Wicking - Actively wicks moisture away from your body and dries quickly Quick Drying - Fast-drying fabric composition enables rapid water evaporation, allowing the garment to dry efficiently after washing or water-based activities Naturally Anti-Bacterial - possesses antibacterial qualities and resists odors, ensuring your feet remain dry all day long 2 year warranty - Includes a 2-year warranty for guaranteed quality and peace of mind