Shape Mid-Length according to AFS Advanced – Bare board At AFS Advanced, each board is the result of years of innovation, rigorous testing, and a relentless pursuit of uncompromising performance. The new **BlackBird Mid-Length** fully embodies this spirit. A true fusion of our various expertise in shaping and inspired by the design of our legendary BlackBird, the **BlackBird Mid-Length** combines innovative design and optimized features for a completely hybrid foiling experience, but never at the expense of performance. This type of cross shape is revolutionizing wing riding today and sits between our Prone, Wing, and Downwind boards.