Munsingwear introduced the world famous Grand Slam® knit shirt in 1955, creating an instantly iconic classic. The sport of golf has since become a lifestyle, not just a few hours on the course. The tagline "On Course. Off Course. Change Course." was developed to characterize this attitude, and the Ball in Motion icon was introduced to represent the brand's forward motion as it earns the loyalty of both male and female consumers. Grand Slam apparel: the future is already here.