When you get your blood pumping, all the muscles in your body need their share. Proper circulation is important for maintaining and rebuilding muscles after intense workouts. FS4 + Compression Bracing Socks will support your muscles while they work hard. Designed for running, walking, standing, sitting, gym, and even sleep in them. Every sock is engineered with the highest quality machines and materials to provide the best technical performance features, developed through years of exhaustive research, for increased comfort and performance. This lightly padded sock is a perfect match for the demanding athlete but also for the occasional runner seeking a perfect feeling of support.