Polyamide,Elastane. COPPER INFUSED SMELL CONTROL SOCKS - Made from 60% polyamide, 25% copper infused yarn, and 15% elastane The copper ions in the yarn will produce a natural protected area, eliminating 99% of the sweat and smell, which helps you to get rid of embarrassing smelly feet. BREATHABLE COMFORTABLE SOCKS - These socks are made of moisture wicking fabric and comes with breathable mesh in areas prone to sweating, helping to keep your feet cool and dry. MAX CUSHIONING & PERFECT PROTECTION - Cushion placed in areas of high impact to reduce pain and stress during running or daily activities. Excellent stitching method in high stress areas like heel and toe improves durability and increases using life. NON-SLIP TAB RUNNING SOCKS - Designed with back ankle protection tab, reducing running or walking injuries while providing ankle support The heel tab makes sure the socks to be non-slip from your hiking or daily walking. IDEAL ITEMS FOR EVERYDAY USE - no show cushioned athletic socks for hiking, walking, training, climbing, daily activities, etc. FIVE colors are provided for your selection. Fit for US shoe size 7-10.