Vintage Evel Knievel 70's Tee. You've now found the staple t-shirt of your wardrobe. It's made of a cotton/poly blend and is soft and comfy. Celebrate a proud history, decades of passionate involvement in motorcycling and spirit that made Evel Knievel a globally recognized icon of American individualism and adventure. Available in S-M-L-XL-2XL-3XL. Evel Knievel Official Sport Grey is 90% ring-spun cotton, 10% polyester Pre-shrunk