The Mick Mackie Smooth Glide series is an ideal choice for surfers looking for a single fin that provides ample drive, while allowing for hard cutbacks and in pocket directional changes.  Both the 8.375" and 9.375" fin have a wide base, with the 9.375" transitioning quickly into a narrow tip and the 8.375" holding more surface area through the center and tip of the fin. This fin will work well in longer mid-lengths, speed shapes, and a variety of longboards.