Vintage BIKE WEEK T-Shirt THUNDER BEACH Panama City, Florida 2008. Autumn Motorcycle Rally Black short sleeve tee with large graphic on the front featuring skulls and Wings. The large graphic on the back features a motorcycle, skulls and wings. Gildan Heavy Cotton. Tag Size: XL. Measurements: pit to pit 25" (chest circumference 50", shoulder to hem 28". This is from my own private collection. Many motorcycle miles on this t-shirt, laundered several times, so faded as you would expect. No holes, rips or stains. Smoke Free Home.