This t-shirt is part of the official 2015 Williams Martini Racing team collection. 100% Authentic and Original. This WMR Team T-Shirt is identical to the wore by team drivers Felipe Massa and Valtteri Bottas along with crew members and management in Grand Prix races, inside the paddock, etc. The Williams Hackett Official Team T-Shirt is the ultimate choice for the racing enthusiast. It features include team branding across the chest, back and sleeves. Features: 100% Nylon Machine washable Martini stripe ribbon running from top left down High quality and resolution printed logos. Contrast design: overall in blue with white sleeves.