The Back To The Future t-shirt shows a Hoverboard, much like the one that Marty McFly used to escape Griff's gang in Back To The Future Part II. The shirt reads Hill Valley Hoverboard Co. Est. 2015 California. The Hoverboard is one of the most iconic images from the Back To The Future trilogy. Everyone will immediately know you are a fan when they see you wearing this Hill Valley Hoverboard Back To The Future t-shirt. Anyone not wearing this Hill Valley Hoverboard Back To The Future t-shirt is going to look like a real bojo!