Peanuts X Parks Project chenille grandpa baseball hat. Limited-edition baseball hat from Parks Project and Peanuts. Soft twill with chenille detailing. Celebrating America's National Parks with a line of apparel, accessories and home decor, Parks Project adventures with purpose. Every purchase funds projects in National Parks, including vital wildlife conservation efforts, trail restorations, visitor education and more. They believe that together, we can leave our world better than we found it.