Surveillance video released from inside the Mildblend Supply Company clothing store shows some of the teens stuffing their backpacks with the store's jeans around 6:40 Saturday evening.
Owner Luke Cho says some of his staff was physically pushed out of the way by the teenagers, who made off with what Cho estimates to be about $3,000 worth of jeans.
"They weren't really intending to try anything on," Cho said. "Their sole purpose was to hang on to something and walk out the door, so there was not a whole lot I can do."
The incident took place as Wicker Park Fest was happening right outside the store's front door. Police are investigating and so far, no arrests have been made.