AFX Mens/Womens/Youth Performance Toe Socks Quarter Length - White-S/M Made in USA and Imported Quarter (Ankle) Length - Ultra thin design ideal for minimalist running or exercise class Permara renewable antimicrobial protection eliminates 99.9% of bacteria and fungi that cause odor in the sock. Renewable - &gt;99% effective after 50 washings Ultra Thin sock layer between toes promotes increased airflow and moisture management Easy Wear- Easy Care - Launder with bleach to renew antimicrobial protection