Semper Fi! We custom knit the USMC Bulldog symbol right onto our premium black crew socks. The tough and rugged grey bulldog as the symbol for the army makes a mean face with USMC in stencil font below. Perfect for exercise, fitness, powerlifting, deadlfting, motocross, hardcore sports, skiing, soccer, softball, and lacrosse. Black with Red, Crew socks. Unisex Adult Size.