Is the design progressive or retro? Yes, and yes. The PP58 manages a classic and current vibe with its sewn-on Mr. PING and PP58-style branding, and the orange velour lining keeps PING mallets well protected with a pop of cheer color. The polyurethane material ensures the cover will stay in good working order over many, many rounds. Features: Exterior is crafted with durable polyurethane material Soft velour-padded interior protects clubhead and hosel  Extra strong magnets help secure cover to putter PING branding on top includes Mr. PING logo Designed to fit most PING mallet putters Material: Polyurethane with Orange Velour Lining  Color: White/Black  Layered PU with PP58 Logo Sewn On  Magnetic Closure