Lightweight, purpose-built socks for running, working out and movement. Bombas Hex Tec construction for breathability and moisture-wicking. Proprietary poly/cotton blend yarns. With comfort innovations like strategic zone cushioning and airflow ventilation. Specially designed to help you move with grace and speed. Fit & Design: Hex Tec: Performance breathability and moisture-wicking to keep you dry, cushioned and comfortable Airflow Venting: Temperature regulating vents allow cool air to flow in, which helps manage moisture and prevent overheating where you need it most Each individual sock is ergonomically designed to fit either your right foot or left foot perfectly A soft, protective cushion at the heel that prevents chafing and blisters from shoe contact The Y-Stitched Heel creates a natural cup around your heel made to fit your feet Strategic Zone Cushioning: Cushioning only where you need it most Seamless toe