On Old Navy’s Facebook page, they have this information:
It’s the moment we’ve all been waiting for. The Flip Flops $1 One Day Wonder sale is in stores… drumroll please… JUNE 30th!  While supplies last. Limit 5 flip-flops per customer. Excludes wedges, prints, metallics, embellished and leather styles. Limited colors, sizes, and quantities.

A great way to take you and yours all through summer at, basically, garage sale prices.