Our Carrera 6 Bonnet T-Shirt is inspired by the 1966 906 Carrera 6 air cooled flat 6 Porsche race car who successfully won the 2000cc class, Daytona 24 Hours for 1966. The American Apparel t-shirt is the smoothest and softest t-shirt you'll ever wear. Made of fine jersey, it has a durable, vintage feel. These classic-cut shirts are known for their premium quality, as well as ability to stand up to a washing machine (will keep size and color after many washings). The shirts are 100% fine jersey cotton, except for the heather grey color (90% cotton, 10% polyester). The fine jersey will ensure that it is ideal for screen printing.