An overrun is a brand new ball often with some type of imprint, normally a name or logo. In some cases, overruns will have no printing on the ball at all. Although brand new, they are typically packaged in mesh bags. 

The Bridgestone Tour B XS Golf Balls are a product of Bridgestone Golf, a leading manufacturer of golf equipment and accessories. They are designed for golfers with low to moderate swing speeds and are part of the Tour B series of golf balls that the company offers.

The Tour B XS golf balls feature a soft compression core that is designed to maximize distance and provide a soft feel on shots around the green. They also have a soft, durable cover that is designed to increase control and spin on shots. They are designed to provide optimal distance, control, and feel for golfers of all skill levels, with a focus on the specific needs of golfers with low to moderate swing speeds. They are suitable for golfers of all skill levels, particularly those looking to improve their accuracy and consistency on the golf course.

Tour B XS features a new Dual Dimple design which is a combination of a shallower inner dimple and a deeper outer dimple, which creates a more stable and consistent ball flight in the wind and also helps to reduce drag for longer distances.