The Oakland Oaks were a basketball team co-owned by singer Pat Boone. They began in 1967 as charter members of the American Basketball Association. They went from worst to first in 1969, capturing the second-ever ABA title. In 1970, the team moved east to become the Washington Caps and, later, the Virginia Squires.
The sweatshirt is great, but the image on the website needs to be updated. A short sleeved shirt is shown and I think that led to confusion with my initial order.