Ping Redwood Golf HatPing Redwood Golf Hat The Redwood Golf Hat is named for Redwood City, California, where Karsten Solheim first started fashioning putters in his homes garage. Indeed, a pop of red in the flagstick decorates this unstructured cap, the 59 referencing the year PING was founded. Its made of polyester for durability, and Spandex so it will stretch to provide a comfortable fit. Key Features: Material: 87% polyester, 13% Spandex HD heat transfer on melange