Sam Hunt unwittingly revived a campaign to save an endangered species of turtles. In his video for “Water Under the Bridge,” he wears a vintage “Save the Ridley” t-shirt.

The Texas-based rescue and rehab organization, Sea Turtle, Inc. has received an outpouring of requests for the shirt, so they’ve decided to bring it back into production for a limited time. All proceeds from the shirt go to the rescue organization’s mission.