Feetures - High Performance Ultra Light - No Show Tab - Athletic Running Socks for Men and Women 79% Polyester, 18% Nylon, 3% Spandex ENGINEERED FOR PERFORMANCE: Feetures engineers products around the body in motion. By combining our experience with our awareness of motion dynamics, we design solutions that unleash the highest level of performance. EXTREME COMFORT: Our Ultra Light socks contain light cushioning that provides extra protection in high impact zones. Our seamless toe provides unsurpassed comfort. MAXIMUM SUPPORT: Power bands of Lycra hug your entire foot for maximum support. This snug, supportive fit eliminates movement to prevent blisters. Y-heel construction keeps the sock from sliding into the shoe. TEMPERATURE CONTROL: Our socks are designed to keep feet cool under the most intense conditions. iWick fibers do a superior job of wicking moisture to keep feet cool and dry. Mesh construction on top of the sock provides ventilation for added breathe-ability. CARE INSTRUCTIONS: Machine wash cold. Hang to dry. No bleach or fabric softeners. For best results, wash socks inside out. LIFETIME GUARANTEE: Feetures stands behind the quality of their socks and wants you to have a great experience with every product they make. If at any point you are unsatisfied with one of their products, you may return it for a replacement or a refund. Feetures High Performance Sock is the original sock design that put us on the map. The legendary sock features power bands of Lycra that hug the foot evenly for comfort and support. This snug, supportive fit eliminates movement to prevent blisters. High density cushioning provides extra protection in high impact areas. iWick fibers wick moisture to keep feet cool and dry while our mesh construction on top of the sock provides ventilation for added breathe-ability. Our Y-heel construction keeps the sock from sliding into the shoe. With the Feetures High Performance Ultra Light No Show Tab Sock, gone are the days of that irritating toe seam. The Perfect Toe lets you run without having to think about your socks. In addition, our advanced No Show Tab height sits below the ankle for maximum versatility.