The Fitsock RX6 Lightweight Tab Socks offer clean lines and performance technology to keep your feet happy during activity. These lightweight socks feature a rebound cushioning and an elongated, 360° arch support for a superior fit and protection from blisters. Repreve yarn technology offers premium cooling and moisture-management. Low Cut style with tab. Seamless toe provides a contoured fit and eliminates bunching and irritation. Features a deep Y heel with cushion.