Diner en Sweatpants

What For those of you who didn't get tickets for, don't want to go to or couldn't find white clothing without stains for Diner en Blanc.
Where The Schuylkill Banks at 24th and Walnut streets 19103
When August 20, 2015 at 5:30 pm to 8:00 pm
How much Free but registration is required