The shirts cost $30 and the team says 100% of the proceeds will go towards supporting relief efforts after the deadly floods ...

In a showing of unity, the Mavericks, Rockets, and San Spurs are teaming up to support those affected by the recent flooding in Central Texas.

You receive a free 713 t-shirt, a ticket to a Rockets preseason game, and a picture with the Clutch City Dancers. For this event, a $5 fee applies to the clinic.