Duke Athletic and Tactical Products have been serving the needs of Athletes since 1975. Here at Jockstraps.com we carry all the Duke Athletic Supporters with and without cups. The Pro Duke is our best-selling Duke jockstrap. The Duke jocks are a great value priced at under $10. Plus, if you are looking to buy bulk jockstraps check out the Pro Duke 12-pack. For swimming or running shop for the Duke Track and swim supporter. The pouches on the Duke products are larger than many other brands but similar to the Bike brand.