The Women's Run No Show Tab Ultra-Lightweight (Style 1043) is a minimalist Merino running sock built to disappear below your shoe and let you focus on the miles. The streamlined no-show profile with a back tab keeps the cuff from slipping into your shoe, while ultra-lightweight construction with no cushion delivers pure, unadulterated ground feel. Breathable flex zones and fine-gauge Merino wool wick moisture, regulate temperature and resist odor mile after mile, and True Seamless construction lays smooth across the toe to prevent blisters. 48% Nylon / 48% Merino Wool / 4% Lycra Spandex.